TestWiz.V by.StarCast.405QA. by StarCast /

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1 TestWiz.V by.StarCast.405QA Number: Passing Score: 825 Time Limit: 120 min File Version: 3.3 Tesinside.V21.24-Killtest.V20.02.Merge&Update by.StarCast.405QA Testinside.V21.24+Killtest.V20.02 를기본으로통합하였습니다. Testinside.V21.24+Killtest.V20.02 덤프에없는일부문제는시험을보신분들의후기를바탕으로예전의여러덤프를찾아서복원하였습니다. Sections 1. Multi Seclect 2. Single Select 3. Drag & Drop 4. Lab 5. VTP SIM 문제복원이가능하게정성어린후기른남겨주신디비고회원님들의노고에감사드립니다. CCNA 후기출처 : 디비고 'S 쉽게따는 IT 자격증 ( 네이버카페 ) by StarCast /

2 Exam A QUESTION 1 Refer to the exhibit. What could be possible causes for the "Serial0/0 is down" interface status? (Choose two.) A. A Layer 1 problem exists. B. The bandwidth is set too low. C. A protocol mismatch exists. D. An incorrect cable is being used. E. There is an incorrect IP address on the Serial 0/0 interface. Answer: AD 어떤원인에의해서인터페이스가 Serial0/0 is down 상태로표시되는가? QUESTION 2 Before installing a new, upgraded version of the IOS, what should be checked on the router, and which command should be used to gather this information? (Choose two.) A. the amount of available ROM B. the amount of available flash and RAM memory C. the version of the bootstrap software present on the router D. show version E. show processes F. show running-config Answer: BD IOS 버전을설치또는업그레이드전에라우터에서확인할사항과이러한확인정보를수집할수있는명령은무엇인가? QUESTION 3 Refer to the exhibit. After HostA pings HostB, which entry will be in the ARP cache of HostA to support this transmission?

3 A. B. C. D. E. F. Answer: D 호스트 A 에서호스트 B 로 ping 을하였다. 호스트 A 에서 ping 이가능하도록하기위해어떤항목이 ARP 캐시에존재해야하는가? QUESTION 4 Refer to the exhibit. Which two statements are true about intervlan routing in the topology that is shown in the exhibit? (Choose two.)

4 A. Host E and host F use the same IP gateway address. B. Router1 and Switch2 should be connected via a crossover cable. C. Router1 will not play a role in communications between host A and host D. D. The FastEthernet 0/0 interface on Router1 must be configured with subinterfaces. E. Router1 needs more LAN interfaces to accommodate the VLANs that are shown in the exhibit. F. The FastEthernet 0/0 interface on Router1 and Switch2 trunk ports must be configured using the same encapsulation type. Answer: DF 아래토폴로지를통해서 VLAN 간라우팅에대한설명중올바른문장 2 가지를고르시오. QUESTION 5 Refer to the exhibit. Which two statements are true about the loopback address that is configured on RouterB? (Choose two.) A. It ensures that data will be forwarded by RouterB. B. It provides stability for the OSPF process on RouterB. C. It specifies that the router ID for RouterB should be D. It decreases the metric for routes that are advertised from RouterB. E. It indicates that RouterB should be elected the DR for the LAN. Answer: BC

5 라우터 B 에설정된루프백주소에대한설명으로맞는내용은? QUESTION 6 A network administrator is explaining VTP configuration to a new technician. What should the network administrator tell the new technician about VTP configuration? (Choose three.) A. A switch in the VTP client mode cannot update its local VLAN database. B. A trunk link must be configured between the switches to forward VTP updates. C. A switch in the VTP server mode can update a switch in the VTP transparent mode. D. A switch in the VTP transparent mode will forward updates that it receives to other switches. E. A switch in the VTP server mode only updates switches in the VTP client mode that have a higher VTP revision number. F. A switch in the VTP server mode will update switches in the VTP client mode regardless of the configured VTP domain membership. Answer: ABD 관리자는신입사원에게 VTP 구성에대해설명하고있다. 관리자가신입사원에게 VTP 에대해무엇을설명해야하는가? QUESTION 7 Which two locations can be configured as a source for the IOS image in the boot system command? (Choose two.) A. RAM B. NVRAM C. flash memory D. HTTP server E. TFTP server F. Telnet server Answer: CE 부트시스템명령에서 IOS 이미지의송신위치로지정가능한두곳은어디인가? QUESTION 8 What are two reasons a network administrator would use CDP? (Choose two.) A. to verify the type of cable interconnecting two devices B. to determine the status of network services on a remote device C. to obtain VLAN information from directly connected switches D. to verify Layer 2 connectivity between two devices when Layer 3 fails E. to obtain the IP address of a connected device in order to telnet to the device F. to determine the status of the routing protocols between directly connected routers Answer: DE 관리자가 CDP 를사용하는 2 가지이유는? QUESTION 9 Refer to the exhibit. Both switches are using a default configuration. Which two destination addresses will host 4 use to send data to host 1? (Choose two.)

6 A. the IP address of host 1 B. the IP address of host 4 C. the MAC address of host 1 D. the MAC address of host 4 E. the MAC address of the Fa0/0 interface of the R1 router F. the MAC address of the Fa0/1 interface of the R1 router Answer: AF 두스위치는디폴트구성을사용하고있다. 호스트 4 에서호스트 1 로데이터전송시사용하는목적지주소 2 개는무엇인가? QUESTION 10 Refer to the exhibit. The router has been configured with these commands: hostname Gateway interface FastEthernet 0/0 ip address no shutdown interface FastEthernet 0/1 ip address no shutdown interface Serial 0/0 ip address no shutdown ip route What are the two results of this configuration? (Choose two.)

7 A. The default route should have a next hop address of B. Hosts on the LAN that is connected to FastEthernet 0/1 are using public IP addressing. C. The address of the subnet segment with the WWW server will support seven more servers. D. The addressing scheme allows users on the Internet to access the WWW server. E. Hosts on the LAN that is connected to FastEthernet 0/1 will not be able to access the Internet without address translation. Answer: DE 라우터는아래와같은명령을통해구성되어있다. hostname Gateway interface FastEthernet 0/0 ip address no shutdown interface FastEthernet 0/1 ip address no shutdown interface Serial 0/0 ip address no shutdown ip route 이러한구성을통해알수있는 2 가지결과는무엇인가? QUESTION 11 A company is installing IP phones. The phones and office computers connect to the same device. To ensure maximum throughput for the phone data, the company needs to make sure that the phone traffic is on a different network from that of the office computer data traffic. What is the best network device to which to directly connect the phones and computers, and what technology should be implemented on this device? (Choose two.) A. hub B. router C. switch D. STP E. subinterfaces F. VLAN Answer: CF

8 회사는 IP phone 을설치하고있다. ip phone 과회사컴퓨터는같은장비에연결되어있다. ip phone 의데이터전송은최대전송률을보장하기위해회사컴퓨터가사용하는네트워크와다른네트워크를필요로한다. ip phone 과컴퓨터를직접연결할수있는가장적합한장비는무엇인가? 그리고해당장비에적용할기술은무엇인가? QUESTION 12 What are two benefits of using VTP in a switching environment? (Choose two.) A. It allows switches to read frame tags. B. It allows ports to be assigned to VLANs automatically. C. It maintains VLAN consistency across a switched network. D. It allows frames from multiple VLANs to use a single interface. E. It allows VLAN information to be automatically propagated throughout the switching environment. Answer: CE 스위칭환경에서 VTP 를사용하는이점은? QUESTION 13 Which two statements are true about the command ip route ? (Choose two.) A. It establishes a static route to the network. B. It establishes a static route to the network. C. It configures the router to send any traffic for an unknown destination to the network. D. It configures the router to send any traffic for an unknown destination out the interface with the address E. It uses the default administrative distance. F. It is a route that would be used last if other routes to the same destination exist. Answer: AE ip route 명령에대한설명으로맞는것은? QUESTION 14 What are two advantages of Layer 2 Ethernet switches over hubs? (Choose two.) A. decreasing the number of collision domains B. filtering frames based on MAC addresses C. allowing simultaneous frame transmissions D. increasing the size of broadcast domains E. increasing the maximum length of UTP cabling between devices Answer: BC 허브기반위에 L2 스위치를사용하는이점은? QUESTION 15 Refer to the exhibit. A network associate needs to configure the switches and router in the graphic so that the hosts in VLAN3 and VLAN4 can communicate with the enterprise server in VLAN2. Which two Ethernet segments would need to be configured as trunk links? (Choose two.)

9 A. A B. B C. C D. D E. E F. F Answer: CF VLAN3 과 VLAN4 의호스트들이 VLAN2 의서버와통신하기위해관리자가스위치와라우터에설정이필요하다. 트렁크구간으로설정해야될두개의이더넷세그먼트는무엇인가? QUESTION 16 Which two topologies are using the correct type of twisted-pair cables? (Choose two.) A. B. C.

10 D. E. Answer: DE twisted-pair 케이블을사용해야하는연결형태는무엇인가? QUESTION 17 Which two values are used by Spanning Tree Protocol to elect a root bridge? (Choose two.) A. amount of RAM B. bridge priority C. IOS version D. IP address E. MAC address F. speed of the links Answer: BE Spanning Tree Protocol 에서 root bridge 선정시사용하는 2 가지값은? QUESTION 18 Refer to the exhibit. Assume that the routing protocol referenced in each choice below is configured with its default settings and the given routing protocol is running on all the routers. Which two conditional statements accurately state the path that will be chosen between networks and for the routing protocol mentioned? (Choose two.) A. If OSPF is the routing protocol, the path will be from R1 to R3 to R4 to R5. B. If OSPF is the routing protocol, the path will be from R1 to R2 to R5. C. If OSPF is the routing protocol, the path will be from R1 to R5. D. If RIPv2 is the routing protocol, the path will be from R1 to R3 to R4 to R5.

11 E. If RIPv2 is the routing protocol, the path will be from R1 to R5. Answer: AE 각각의문항에서언급한라우팅프로토콜이기본값으로설정되어있으며모든라우터에서해당프로토콜이작동하는것으로가정한다. 위에언급된라우팅프로토콜에의해 과 네트워크간에경로선정시올바르게설명한것을 2 개를고르시오. QUESTION 19 Refer to the exhibit. A network administrator is adding two new hosts to SwitchA. Which three values could be used for the configuration of these hosts? (Choose three.) A. host A IP address: B. host A IP address: C. host A default gateway: D. host B IP address: E. host B default gateway: F. host B IP address: Answer: ACF 관리자는스위치 A 에 2 개의호스트를추가하였다. 해당호스트의환경설정시사용되어지는값 3 가지는무엇인가? QUESTION 20 A network administrator changes the configuration register to 0x2142 and reboots the router. What are two results of making this change? (Choose two.) A. The IOS image will be ignored. B. The router will prompt to enter initial configuration mode. C. The router will boot to ROM. D. Any configuration entries in NVRAM will be ignored. E. The configuration in flash memory will be booted. Answer: BD

12 관리자는레지스터를 0x2142 로변경후라우터를재부팅하였다. 이러한변경을통해나타나는 2 가지결과는무엇인가? QUESTION 21 Refer to the exhibit. The networks connected to router R2 have been summarized as a /21 route and sent to R1. Which two packet destination addresses will R1 forward to R2? (Choose two.) A B C D E F Answer: BE R2 에연결된네트워크는 /21 로축약되어 R1 로전송된다. R1 에서 R2 로포워딩이가능한목적지주소를가지고있는두개의패킷은무엇인가? QUESTION 22 Which three statements are typical characteristics of VLAN arrangements? (Choose three.) A. A new switch has no VLANs configured. B. Connectivity between VLANs requires a Layer 3 device. C. VLANs typically decrease the number of collision domains. D. Each VLAN uses a separate address space. E. A switch maintains a separate bridging table for each VLAN. F. VLANs cannot span multiple switches. Answer: BDE VLAN 설정에관한기본적인특성 3 가지는?[ QUESTION 23 Refer to the exhibit. Which three statements are true about how router JAX will choose a path to the 1.3.0/24 network when different routing protocols are configured? (Choose three.)

13 A. By default, if RIPv2 is the routing protocol, only the path JAX-ORL will be installed into the routing table. B. The equal cost paths JAX-CHI-ORL and JAX- NY-ORL will be installed in the routing table if RIPv2 is the routing protocol. C. When EIGRP is the routing protocol, only the path JAX-ORL will be installed in the routing table by default. D. When EIGRP is the routing protocol, the equal cost paths JAX-CHI-ORL, and JAX-NY-ORL will be installed in the routing table by default. E. With EIGRP and OSPF both running on the network with their default configurations, the EIGRP paths will be installed in the routing table. F. The OSPF paths will be installed in the routing table, if EIGRP and OSPF are both running on the network with their default configurations. Answer: ADE 라우터 JAX 에서다른라우팅프로토콜이구성되어있을때 /24 경로설정에대한설명으로맞는것 3 개를고르시오? QUESTION 24 Refer to the exhibit. Which three statements correctly describe Network Device A? (Choose three.) A. With a network wide mask of , each interface does not require an IP address. B. With a network wide mask of , each interface does require an IP address on a unique IP subnet. C. With a network wide mask of , must be a Layer 2 device for the PCs to communicate with each other. D. With a network wide mask of , must be a Layer 3 device for the PCs to communicate with each other. E. With a network wide mask of , each interface does not require an IP address.

14 Answer: BDE 네트워크장치 A 에대한설명으로맞는것 3 개를고르시오 QUESTION 25 Switch ports operating in which two roles will forward traffic according to the IEEE 802.1w standard? (Choose two.) A. alternate B. backup C. designated D. disabled E. root Answer: CE IEEE 802.1w(STP) 기준으로트래픽포워딩을처리하는역할을담당하는스위치포트는무엇인가? QUESTION 26 Refer to the exhibit. Given the output shown from this Cisco Catalyst 2950, what is the most likely reason that interface FastEthernet 0/10 is not the root port for VLAN 2? A. This switch has more than one interface connected to the root network segment in VLAN 2. B. This switch is running RSTP while the elected designated switch is running 802.1d Spanning Tree. C. This switch interface has a higher path cost to the root bridge than another in the topology. D. This switch has a lower bridge ID for VLAN 2 than the elected designated switch. Answer: C 카탈리스트 2950 스위치의출력결과이다. FastEthernet 0/10 인터페이스가 VLAN2 의 root port 가아닌이유로타당한것은무엇인가? QUESTION 27 Refer to the exhibit. The network administrator must establish a route by which London workstations can forward traffic to the Manchester workstations. What is the simplest way to accomplish this?

15 A. Configure a dynamic routing protocol on London to advertise all routes to Manchester. B. Configure a dynamic routing protocol on London to advertise summarized routes to Manchester. C. Configure a dynamic routing protocol on Manchester to advertise a default route to the London router. D. Configure a static default route on London with a next hop of E. Configure a static route on London to direct all traffic destined for /22 to F. Configure Manchester to advertise a static default route to London. Answer: E 네트워크관리자는 London 워크스테이션에서 Manchester 워크스테이션으로트래픽을포워딩할수있도록경로를설정하고자한다. 가장간단한방법은무엇인가? QUESTION 28 Refer to the exhibit. This command is executed on 2960Switch: 2960Switch(config)# mac-address-table static aa.aaaa vlan 10 interface fa0/1 Which two of these statements correctly identify results of executing the command? (Choose two.) A. Port security is implemented on the fa0/1 interface. B. MAC address aa.aaaa does not need to be learned by this switch.

16 C. Only MAC address aa.aaaa can source frames on the fa0/1 segment. D. Frames with a Layer 2 source address of aa.aaaa will be forwarded out fa0/1. E. MAC address aa.aaaa will be listed in the MAC address table for interface fa0/1 only. Answer: BE 2960 스위치에서아래와같은명령을수행하였다. 2960Switch(config)# mac-address-table static aa.aaaa vlan 10 interface fa0/1 위명령의수행결과를올바르게설명한문장 2 개를고르시오. QUESTION 29 Which of the following describes the roles of devices in a WAN? (Choose three.) A. A CSU/DSU terminates a digital local loop. B. A modem terminates a digital local loop. C. A CSU/DSU terminates an analog local loop. D. A modem terminates an analog local loop. E. A router is commonly considered a DTE device. F. A router is commonly considered a DCE device. Answer: ADE WAN 에서사용되는장비의역활을설명한것은무엇인가? QUESTION 30 What are two characteristics of Telnet? (Choose two.) A. It sends data in clear text format. B. It is no longer supported on Cisco network devices. C. It is more secure than SSH. D. It requires an enterprise license in order to be implemented. E. It requires that the destination device be configured to support Telnet connections. Answer: AE 텔넷의 2 가지특성은? QUESTION 31 What are two security appliances that can be installed in a network? (Choose two.) A. ATM B. IDS C. IOS D. IOX E. IPS F. SDM Answer: BE 네트워크에설치하는보안장비 2 가지는?

17 QUESTION 32 A single g access point has been configured and installed in the center of a square office. A few wireless users are experiencing slow performance and drops while most users are operating at peak efficiency. What are three likely causes of this problem? (Choose three.) A. mismatched TKIP encryption B. null SSID C. cordless phones D. mismatched SSID E. metal file cabinets F. antenna type or direction Answer: CEF g 단일엑세스포인트가본산에설정되어있다. 일부무선사용자들은속도저하와끊김현상을느끼고있으나대부분의사용자들은정상작동되고있다. 이러한원인으로생각되는 3 가지는무엇인가? QUESTION 33 A host is attempting to send data to another host on a different network. What is the first action that the sending host will take? A. Drop the data. B. Send the data frames to the default gateway. C. Create an ARP request to get a MAC address for the receiving host. D. Send a TCP SYN and wait for the SYN ACK with the IP address of the receiving host. Answer: C 호스트에서다른네트워크의호스트에데이터전송을시도하고있다. 호스트에서취하는첫번째조치는무엇인가? QUESTION 34 Refer to the exhibit. What two facts can be determined from the WLAN diagram? (Choose two.)

18 A. The area of overlap of the two cells represents a basic service set (BSS). B. The network diagram represents an extended service set (ESS). C. Access points in each cell must be configured to use channel 1. D. The area of overlap must be less than 10% of the area to ensure connectivity. E. The two APs should be configured to operate on different channels. Answer: BE WLAN( 무선랜 ) 다이어그램를통해판단할수있는사실 2 가지는? QUESTION 35 Which two devices can interfere with the operation of a wireless network because they operate on similar frequencies? (Choose two.) A. copier B. microwave oven C. toaster D. cordless phone E. IP phone F. AM radio Answer: BD 무선네트워크에서비슷한주파수대역을사용함에따라간섭현상을일으키는 2 가지장비는? QUESTION 36 Which two statements describe characteristics of IPv6 unicast addressing? (Choose two.) A. Global addresses start with 2000::/3. B. Link-local addresses start with FE00:/12. C. Link-local addresses start with FF00::/10. D. There is only one loopback address and it is ::1. E. If a global address is assigned to an interface, then that is the only allowable address for the interface.

19 Answer: AD IPv6 유니캐스트주소에대한설명으로맞는문장 2 개를고르시오? QUESTION 37 Refer to the exhibit. Which statement is true? A. The Fa0/11 role confirms that SwitchA is the root bridge for VLAN 20. B. VLAN 20 is running the Per VLAN Spanning Tree Protocol. C. The MAC address of the root bridge is d D. SwitchA is not the root bridge, because not all of the interface roles are designated. Answer: D 아래내용을참고하여맞는문장을고르시오 QUESTION 38 Which two of these statements are true of IPv6 address representation? (Choose two.) A. There are four types of IPv6 addresses: unicast, multicast, anycast, and broadcast. B. A single interface may be assigned multiple IPv6 addresses of any type. C. Every IPv6 interface contains at least one loopback address. D. The first 64 bits represent the dynamically created interface ID. E. Leading zeros in an IPv6 16 bit hexadecimal field are mandatory. Answer: BC IPv6 에대한설명으로맞는문장 2 개는? QUESTION 39

20 What are three basic parameters to configure on a wireless access point? (Choose three.) A. SSID B. RTS/CTS C. AES-CCMP D. TKIP/MIC E. RF channel F. authentication method Answer: AEF 무선엑세스포인트설정시기본매개변수 3 가지는무엇인가? QUESTION 40 Refer to the exhibit. A system administrator installed a new switch using a script to configure it. IP connectivity was tested using pings to SwitchB. Later attempts to access NewSwitch using Telnet from SwitchA failed. Which statement is true? A. Executing password recovery is required. B. The virtual terminal lines are misconfigured. C. Use Telnet to connect to RouterA and then to NewSwitch to correct the error. D. Power cycle of NewSwitch will return it to a default configuration. Answer: C 시스템관리자는새로운스위치에대해규정에따라환경설정을하였다. ping 을통해스위치 B 와의연결문제는테스트하였다. 이후에스위치 A 에서새로운스위치에연결을시도하기위해텔넷을이용하였으나실패하였다. 아래내용중참인문장은무엇인가? QUESTION 41 Which two of these statements regarding RSTP are correct? (Choose two.) A. RSTP cannot operate with PVST+.

21 B. RSTP defines new port roles. C. RSTP defines no new port states. D. RSTP is a proprietary implementation of IEEE 802.1D STP. E. RSTP is compatible with the original IEEE 802.1D STP. Answer: BE RSTP 에대한설명으로맞는내용 2 가지를고르시오. QUESTION 42 Which three of these statements regarding 802.1Q trunking are correct? (Choose three.) A Q native VLAN frames are untagged by default. B Q trunking ports can also be secure ports. C Q trunks can use 10 Mb/s Ethernet interfaces. D Q trunks require full-duplex, point-to-point connectivity. E Q trunks should have native VLANs that are the same at both ends. Answer: ACE 802.1Q 트렁킹에대한설며으로맞는내용 3 가지를고르시오. QUESTION 43 Refer to the exhibit. Each of these four switches has been configured with a hostname, as well as being configured to run RSTP. No other configuration changes have been made. Which three of these show the correct RSTP port roles for the indicated switches and interfaces? (Choose three.) A. SwitchA, Fa0/2, designated B. SwitchA, Fa0/1, root C. SwitchB, Gi0/2, root D. SwitchB, Gi0/1, designated E. SwitchC, Fa0/2, root F. SwitchD, Gi0/2, root

22 Answer: ABF 네대의스위치는호스트명과 RSTP 가설정되었다. 다른설정사항은변경이없다. 스위치와인터페이스에서각각의 RSTP 포트역할에대해올바르게나열한것은? QUESTION 44 Refer to the exhibit. A junior network administrator was given the task of configuring port security on SwitchA to allow only PC_A to access the switched network through port fa0/1. If any other device is detected, the port is to drop frames from this device. The administrator configured the interface and tested it with successful pings from PC_A to RouterA, and then observes the output from these two show commands. Which two of these changes are necessary for SwitchA to meet the requirements? (Choose two.) A. Port security needs to be globally enabled. B. Port security needs to be enabled on the interface. C. Port security needs to be configured to shut down the interface in the event of a violation. D. Port security needs to be configured to allow only one learned MAC address. E. Port security interface counters need to be cleared before using the show command. F. The port security configuration needs to be saved to NVRAM before it can become active. Answer: BD 신입네트워크관리자에게스위치 A 에 PC_A 만 fa0/1 포트를통해접근이가능하도록 port security 를구성하는임무가주어졌다. 다른장치의접근이확인되면포트는해당프레임을폐기 (drop) 한다. 관리자는설정후 ping 을통해 PC_A 에서라우터 A 로의접근테스트는성공하였고그리고아래두명령의결과를관찰하였다. 요구사항을만족하기위해스위치 A 에서변경해야하는 2 가지사항은무엇인가?

23 QUESTION 45 Which of the following correctly describe steps in the OSI data encapsulation process? (Choose two.) A. The transport layer divides a data stream into segments and may add reliability and flow control information. B. The data link layer adds physical source and destination addresses and an FCS to the segment. C. Packets are created when the network layer encapsulates a frame with source and destination host addresses and protocol-related control information. D. Packets are created when the network layer adds Layer 3 addresses and control information to a segment. E. The presentation layer translates bits into voltages for transmission across the physical link. Answer: AD OSI 모델에서데이터인캡슐레이션처리절차를올바르게설명한것은무엇인가? QUESTION 46 For which type of connection should a straight-through cable be used? A. switch to switch B. switch to hub C. switch to router D. hub to hub E. router to PC Answer: C 스트레이트케이블을사용해야하는연결형태는? QUESTION 47 Which set of commands is recommended to prevent the use of a hub in the access layer? A. switch(config-if)#switchport mode trunk switch(config-if)#switchport port-security maximum 1 B. switch(config-if)#switchport mode trunk switch(config-if)#switchport port-security mac-address 1 C. switch(config-if)#switchport mode access switch(config-if)#switchport port-security maximum 1 D. switch(config-if)#switchport mode access switch(config-if)#switchport port-security mac-address 1 Answer: C 엑세스계층에서허브를사용하는것을방지하는데권장되는명령들로구성된것은? QUESTION 48 By default, each port in a Cisco Catalyst switch is assigned to VLAN1. Which two recommendations are key to avoid unauthorized management access? (Choose two.) A. Create an additional ACL to block the access to VLAN 1. B. Move the management VLAN to something other than default. C. Move all ports to another VLAN and deactivate the default VLAN. D. Limit the access in the switch using port security configuration. E. Use static VLAN in trunks and access ports to restrict connections.

24 F. Shutdown all unused ports in the Catalyst switch. Answer: BF 기본적으로시스코카탈리스트스위치내의각포트 ( 모든포트 ) 는 VLAN1 에할당되었다. 허가받지않은 ( 비인가된 ) 관리접근을피하기위한핵심권장사항 2 가지는무엇인가? QUESTION 49 Which Cisco Catalyst feature automatically disables the port in an operational PortFast upon receipt of a BPDU? A. BackboneFast B. UplinkFast C. Root Guard D. BPDU Guard E. BPDU Filter Answer: D 시스코카탈리스트에서 PortPast 로작동중인포트에서 BPDU 수신시자동으로포트를사용중지로변경하는특성을무엇이라하는가? QUESTION 50 Which type of cable is used to connect the COM port of a host to the COM port of a router or switch? A. crossover B. straight-through C. rolled D. shielded twisted-pair Answer: C 호스트 COM 포트에서라우터또는스위치의 COM 포트로연결하는사용되는케이블은? QUESTION 51 What is known as "one-to-nearest" addressing in IPv6? A. global unicast B. anycast C. multicast D. unspecified address Answer: B "one-to-nearest" 로알려진 IPv4 의주소형태는? QUESTION 52 Which option is a valid IPv6 address? A. 2001:0000:130F::099a::12a B. 2002:7654:A1AD:61:81AF:CCC1

25 C. FEC0:ABCD:WXYZ:0067::2A4 D. 2004:1:25A4:886F::1 Answer: D IPv6 주소롤올바른것은? QUESTION 53 How many bits are contained in each field of an IPv6 address? A. 24 B. 4 C. 8 D. 16 Answer: D IPv6 에서각필드는몇비트인가? QUESTION 54 Which layer of the OSI reference model uses the hardware address of a device to ensure message delivery to the proper host on a LAN? A. physical B. data link C. network D. transport Answer: B OSI 모델중장치의하드웨어주소를이용하여 LAN 의호스트에게메세지전송을담당하는계층은무엇인가? QUESTION 55 Which layer of the OSI reference model uses flow control, sequencing, and acknowledgements to ensure that reliable networking occurs? A. data link B. network C. transport D. presentation E. physical Answer: C OSI 참조모델중흐름제어 (flow control), 순서제어 (sequencing), 회신 (acknowlegment) 을이용하여신뢰성있는네트워킹을담당하는계층은? QUESTION 56 What is the principle reason to use a private IP address on an internal network? A. Subnet strategy for private companies.

26 B. Manage and scale the growth of the internal network. C. Conserve public IP addresses so that we do not run out of them. D. Allow access reserved to the devices. Answer: C 내부네트워크에서사설 ip 를사용하는이유는? QUESTION 57 Which IP address can be assigned to an Internet interface? A B C D Answer: B 인터넷인터페이스에할당할수있는 ip 주소는? QUESTION 58 What will happen if a private IP address is assigned to a public interface connected to an ISP? A. Addresses in a private range will be not routed on the Internet backbone. B. Only the ISP router will have the capability to access the public network. C. The NAT process will be used to translate this address in a valid IP address. D. Several automated methods will be necessary on the private network. E. A conflict of IP addresses happens, because other public routers can use the same range. Answer: A 사설 ip 주소를 IPS 와연결된인터페이스에할당시발생할수있는문제는무엇인가? QUESTION 59 When is it necessary to use a public IP address on a routing interface? A. Connect a router on a local network. B. Connect a router to another router. C. Allow distribution of routes between networks. D. Translate a private IP address. E. Connect a network to the Internet. Answer: E 라우팅인터페이스에공인 IP 주소를사용해야되는경우는언제인가? QUESTION 60 What is the first 24 bits in a MAC address called? A. NIC

27 B. BIA C. OUI D. VAI Answer: C MAC 주소중처음 24bit 를무엇이라부르는가? QUESTION 61 In an Ethernet network, under what two scenarios can devices transmit? (Choose two.) A. when they receive a special token B. when there is a carrier C. when they detect no other devices are sending D. when the medium is idle E. when the server grants access Answer: CD 이더넷네트워크에서장비에서데이터전송이가능한상태를나타내는시나리오두가지는? ( 팁 : CSMA/CD 관련 ) QUESTION 62 Which term describes the process of encapsulating IPv6 packets inside IPv4 packets? A. tunneling B. hashing C. routing D. NAT Answer: A IPv4 패킷내부에 IPv6 패킷을인캡슐레이션하는처리과정을칭하는용어는? QUESTION 63 Which statement about RIPng is true? A. RIPng allows for routes with up to 30 hops. B. RIPng is enabled on each interface separately. C. RIPng uses broadcasts to exchange routes. D. There can be only one RIPng process per router. Answer: B RIPng 에대한설명으로맞는것은? QUESTION 64 Which statement about IPv6 is true? A. Addresses are not hierarchical and are assigned at random. B. Only one IPv6 address can exist on a given interface.

28 C. There are 2.7 billion addresses available. D. Broadcasts have been eliminated and replaced with multicasts. Answer: D IPv6 에대한설명으로맞는것은? QUESTION 65 Which line from the output of the show ip interface command indicates a layer 1 problem? A. Serial0/1 is up, line protocol is down B. Serial0/1 is down, line protocol is down C. Serial0/1 is up, line protocol is up D. Serial0/1 is administratively down, line protocol is down Answer: B show ip interface 명령의출력결과중 layer 1 계층의원인으로인한결과를나열한문장은? QUESTION 66 A network admin wants to know every hop the packets take when he accesses cisco.com. Which command is the most appropriate to use? A. path cisco.com B. debug cisco.com C. trace cisco.com D. traceroute cisco.com Answer: D 네트워크관리자는 cisco.com 에접근시패킷이거쳐가는모든 hop 을알고자한다. 어떤명령을사용하는것이좋은가? QUESTION 67 QoS policies are applied on the switches of a LAN. Which type of command will show the effects of the policy in real time? A. show command B. debug command C. configuration command D. rommon command Answer: B QoS 정책은 LAN 구간의모든스위치에적용된다. 해당정책의효과를실시간으로확인할수있는명령은? QUESTION 68 Which command will show the MAC addresses of stations connected to switch ports? A. show mac-address B. show arp C. show table

29 D. show switchport Answer: B 스위치포트에연결된 MAC 주소테이블을출력하는명령은? QUESTION 69 What is the name of the VTP mode of operation that enables a switch to forward only VTP advertisements while still permitting the editing of local VLAN information? A. server B. client C. tunnel D. transparent Answer: D VTP 광고를오직포워드할수있으나자신의 VLAN 정보는수정할수있는방식으로작동되는 VTP 모드는무엇인가? QUESTION 70 Which port state is introduced by Rapid-PVST? A. learning B. listening C. discarding D. forwarding Answer: C Rapid-PVST 에의해도입된포트상태를나타내는용어는? QUESTION 71 What speeds must be disabled in a mixed b/g WLAN to allow only g clients to connect? A. 6, 9, 12, 18 B. 1, 2, 5.5, 6 C. 5.5, 6, 9, 11 D. 1, 2, 5.5, 11 Answer: D b/g WLAN 에서지원하는속도중 g 클라이언트만이접속을허용하기위해서차단해야되는지원속도는? QUESTION 72 Refer to the exhibit. Which VLSM mask will allow for the appropriate number of host addresses for Network A?

30 A. /25 B. /26 C. /27 D. /28 Answer: A 네트워크 A 에적절한호스트주소의수를지원하는 VLSM 마스크는무엇인가? QUESTION 73 Refer to the exhibit. Which subnet mask will place all hosts on Network B in the same subnet with the least amount of wasted addresses? A B C D Answer: B 동일서브넷에서최소한의주소낭비를통해네트워크 B 의모든호스트를배치할수있는서브넷마스크는? QUESTION 74 Refer to the exhibit. Which mask is correct to use for the WAN link between the routers that will provide connectivity while wasting the least amount of addresses? A. /23 B. /24

31 C. /25 D. /30 Answer: D 주소낭비없이 WAN 구간에서라우터를연결할수있는서브넷마스크는? QUESTION 75 Refer to the exhibit. What is the most appropriate summarization for these routes? A /21 B /22 C /23 D /24 Answer: B 해당라우터에서가장적절한축약형태는무엇인가? QUESTION 76 Which two tasks does the Dynamic Host Configuration Protocol perform? (Choose two.) A. Set the IP gateway to be used by the network. B. Perform host discovery used DHCPDISCOVER message. C. Configure IP address parameters from DHCP server to a host. D. Provide an easy management of layer 3 devices. E. Monitor IP performance using the DHCP server. F. Assign and renew IP address from the default pool. Answer: CF Dynamic Host Configuration Protocol(DHCP) 의수행하는 2 가지역할은무엇인가? QUESTION 77 Which two benefits are provided by using a hierarchical addressing network addressing scheme? (Choose two.) A. reduces routing table entries B. auto-negotiation of media rates C. efficient utilization of MAC addresses D. dedicated communications between devices E. ease of management and troubleshooting Answer: AE

32 네트워크주소체계중계층적주소형태를사용하는장점 2 가지는? QUESTION 78 Which two benefits are provided by creating VLANs? (Choose two.) A. added security B. dedicated bandwidth C. provides segmentation D. allows switches to route traffic between subinterfaces E. contains collisions Answer: AC VLAN 생성시이점 2 가지는? QUESTION 79 Which two link protocols are used to carry multiple VLANs over a single link? (Choose two.) A. VTP B q C. IGP D. ISL E u Answer: BD 단일링크를통해복수의 VLAN 정보전송시사용되는링크프로토콜 2 가지는? QUESTION 80 Which two protocols are used by bridges and/or switches to prevent loops in a layer 2 network?(choose two.) A d B. VTP C q D. STP E. SAP Answer: AD 브리지또는스위치에서레이어 2 계층의루핑을방지하기위해사용되는프로토콜은? QUESTION 81 On the network /27, what is the last IP address that can be assigned to a host? A B C D Answer: A

33 /27 네트워크에서호스트에할당할수있는마지막 IP 주소는? QUESTION 82 The ip subnet zero command is not configured on a router. What would be the IP address of Ethernet 0/0 using the first available address from the sixth subnet of the network /29? A B C D Answer: C ip subnet zero 명령이라우터에설정되지않았다 /29 의여섯개서브넷중첫번째주소를사용시 ethernet 0/0 ip 주소는무엇인가? QUESTION 83 For the network /23, which option is a valid IP address that can be assigned to a host? A B C D Answer: B /23 에서호스트에할당할수있는유효한주소는? QUESTION 84 How many addresses for hosts will the network /22 provide? A. 510 B C D Answer: B /22 네트워크는몇개의주소를호스트에할당할수있는가? QUESTION 85 Where does routing occur within the DoD TCP/IP reference model? A. application B. internet C. network D. transport Answer: B

34 DoD TCP/IP 모델에서라우팅이처리되는계층은? QUESTION 86 Which VTP mode is capable of creating only local VLANs and does not synchronize with other switches in the VTP domain? A. client B. dynamic C. server D. static E. transparent Answer: E 자신의로컬 VLAN 만을생성할수있고 VTP 도메인에있는다른스위치와는동기화하지않는 VTP 모드는무엇인가? QUESTION 87 Which switch would STP choose to become the root bridge in the selection process? A : B : C : D : Answer: A STP 에의해 root bridge 로선출되는스위치는무엇인가? QUESTION 88 A switch is configured with all ports assigned to vlan 2 with full duplex FastEthernet to segment existing departmental traffic. What is the effect of adding switch ports to a new VLAN on the switch? A. More collision domains will be created. B. IP address utilization will be more efficient. C. More bandwidth will be required than was needed previously. D. An additional broadcast domain will be created. Answer: D 스위치의모든포트가 vlan2 에할당되었으며 full duplex FastEthernet 으로설정되어부분적인트래픽을분할하기위해사용된다. 스위치의새로운 VLAN 에스위치의포트를배정할경우어떤현상이발생하는가? QUESTION 89 Which two statements about the use of VLANs to segment a network are true? (Choose two.) A. VLANs increase the size of collision domains. B. VLANs allow logical grouping of users by function. C. VLANs simplify switch administration. D. VLANs enhance network security. Answer: BD

35 네트워크세그먼트를분할하는용도로사용되는 VLAN 에대한설명으로맞는문장 2 가지를고르시오. QUESTION 90 On corporate network, hosts on the same VLAN can communicate with each other, but they are unable to communicate with hosts on different VLANs. What is needed to allow communication between the VLANs? A. a router with subinterfaces configured on the physical interface that is connected to the switch B. a router with an IP address on the physical interface connected to the switch C. a switch with an access link that is configured between the switches D. a switch with a trunk link that is configured between the switches Answer: A 회사네트워크에서동일 VLAN 에있는호스트는서로통신이가능하다. 그러나다른 VLAN 의호스트와는통신이되지않는다. VLAN 간통신을위해필요한것은무엇인가? QUESTION 91 When a DHCP server is configured, which two IP addresses should never be assignable to hosts? (Choose two.) A. network or subnetwork IP address B. broadcast address on the network C. IP address leased to the LAN D. IP address used by the interfaces E. manually assigned address to the clients F. designated IP address to the DHCP server Answer: AB DHCP 서버가구성되었을때호스트에할당할수없는 IP 주소는 2 가지는무엇인가? QUESTION 92 Which statement describes the process of dynamically assigning IP addresses by the DHCP server? A. Addresses are allocated after a negotiation between the server and the host to determine the length of the agreement. B. Addresses are permanently assigned so that the hosts uses the same address at all times. C. Addresses are assigned for a fixed period of time, at the end of the period, a new request for an address must be made. D. Addresses are leased to hosts, which periodically contact the DHCP server to renew the lease. Answer: D DHCP 에의한동적 IP 주소배정절차에대한설명으로맞는것은? QUESTION 93 Which network protocol does DNS use? A. FTP B. TFTP C. TCP

36 D. UDP E. SCP Answer: D DNS 에서사용하는프로토콜은? QUESTION 94 When two hosts are trying to communicate across a network, how does the host originating the communication determine the hardware address of the host that it wants to "talk" to? A. RARP request B. Show Network Address request C. Proxy ARP request D. ARP request E. Show Hardware Address request Answer: D 네트워크를통해두개의호스트가통신하고자할때, 어떠한방식으로소통을원하는호스트의하드웨어주소 (MAC 주소 ) 를선정하여통신이시작되는가? QUESTION 95 When a host transmits data across a network to another host, which process does the data go through? A. standardization B. conversion C. encapsulation D. synchronization Answer: C 호스트에서네트워크를통해다른호스트로데이터를전송시데이터는어떤과정을거쳐통과되는가? QUESTION 96 An administrator attempts a traceroute but receives a "Destination Unreadable" message. Which protocol is responsible for that message? A. RARP B. RUDP C. ICMP D. SNMP Answer: C 관리자는 traceroute 를시도하였으나 "Destination Unreadable" 메시지를수신하였다. 해당메시지를처리하는프로토콜은무엇인가? QUESTION 97 When you are logged into a switch, which prompt indicates that you are in privileged mode?

37 A. % C. > D. $ E. # Answer: E 스위치에로그인시권한모드를나타내는프롬프트는? QUESTION 98 Which command shows system hardware and software version information? A. show configuration B. show environment C. show inventory D. show platform E. show version Answer: E 하드웨어와소프트웨어버전정보를출력하는명령어는? QUESTION 99 Cisco Catalyst switches CAT1 and CAT2 have a connection between them using ports FA0/13. An 1Q trunk is configured between the two switches. On CAT1, VLAN 10 is chosen as native, but on CAT2 the native VLAN is not specified. What will happen in this scenario? A Q giants frames could saturate the link. B. VLAN 10 on CAT1 and VLAN 1 on CAT2 will send untagged frames. C. A native VLAN mismatch error message will appear. D. VLAN 10 on CAT1 and VLAN 1 on CAT2 will send tagged frames. Answer: C 시스코카탈리스트스위치 CAT1 과 CAT2 가 FA0/13 를통해연결되어있다. 두스위치는 802.1Q 트렁크로설정되어있다. CAT1 의네이티브 VLAN 은 VLAN 10 이고 CAT2 의네이티브 LAN 은정의되어있지않다. 아래에서발생가능한시나리오를고르시오? QUESTION 100 Which command would correctly configure a serial port on a router with the last usable host address in the /29 subnet? A. router (config-if)# ip address B. router (config-if)# ip address C. router (config-if)# ip address D. router (config-if)# ip address E. router (config-if)# ip address F. router (config-if)# ip address Answer: F

38 /29 서브넷에서호스트에사용가능한마지막 ip 를라우터의시리얼포트에배정하는명령어로맞는것은? QUESTION 101 The network default gateway applying to a host by DHCP is /28. Which option is the valid IP address of this host? A B C D E Answer: C DHCP 에의해하나의호스트에할당된 (?) 네트웍디폴트게이트웨이주소가 /28 이다. 다음중이호스트의 IP 주소로적합한것은? QUESTION 102 Which two addresses can be assigned to a host with a subnet mask of ? (Choose two.) A B C D E Answer: BD 의서브넷마스크로하나의호스트에할당될수있는주소 2 개는어느것인가? QUESTION 103 The network administrator has asked you to check the status of the workstation's IP stack by pinging the loopback address. Which address would you ping to perform this task? A B C D Answer: B 네트워크관리자가루프백으로의핑테스트를통해, 워크스테이션 IP 정보를체크하도록당신에게요구했다. 이작업을수행하기위해핑테스트가가능한주소는? QUESTION 104 Workstation A has been assigned an IP address of /28. Workstation B has been assigned an IP address of /28. The two workstations are connected with a straight-through cable. Attempts to ping between the hosts are unsuccessful. What two things can be done to allow communications between the hosts? (Choose two.) A. Replace the straight-through cable with a crossover cable. B. Change the subnet mask of the hosts to /25.

39 C. Change the subnet mask of the hosts to /26. D. Change the address of Workstation A to E. Change the address of Workstation B to Answer: AB 워크스테이션 A 는 /28 의 IP 주소를배정했고, 워크스테이션 B 는 /28 의 IP 주소를배정했다. 두워크스테이션은스트레이트케이블로연결돼있는상태다. 두워크스테이션사이의인터넷연결시도했더니실패했다. 두워크스테이션이연결되도록하기위해서취할수있는두가지는? QUESTION 105 Your ISP has given you the address /29 to assign to your router's interface. They have also given you the default gateway address of After you have configured the address, the router is unable to ping any remote devices. What is preventing the router from pinging remote devices? A. The default gateway is not an address on this subnet. B. The default gateway is the broadcast address for this subnet. C. The IP address is the broadcast address for this subnet. D. The IP address is an invalid class D multicast address. Answer: B 당신의 ISP 업체가당신의라우터인터페이스에할당하라고, /29 주소를배정해주었다. 그들은또한 의디폴트게이트웨이주소를배정해줬다. 당신이그주소를설정한라우터는외부의장치와인터넷연결이되지않았다. 라우터와외부네트워크가연결이안되는요인은무엇일까? QUESTION 106 Which command is used to copy the configuration from RAM into NVRAM? A. copy running-config: startup-config B. copy startup-config: running-config: C. copy running config startup config D. copy startup config running config E. write terminal Answer: A RAM 설정을 NVRAM 으로복사하기위해사용되는명령어는? QUESTION 107 Which command is used to load a configuration from a TFTP server and merge the configuration into RAM? A. copy running-config: TFTP: B. copy TFTP: running-config C. copy TFTP: startup-config D. copy startup-config: TFTP: Answer: B TFTP 서버로부터설정정보를불러오거나, 설정정보를 RAM 으로내보내기위해사용되는명령어는?

40 QUESTION 108 A system administrator types the command to change the hostname of a router. Where on the Cisco IFS is that change stored? A. NVRAM B. RAM C. FLASH D. ROM E. PCMCIA Answer: B 시스템관리자가라우터의호스트네임을변경했다. CISCO IFS 의경우, 이러한변경사항은어디에저장될까? QUESTION 109 Which command is used to configure a default route? A. ip route B. ip route C. ip route D. ip route Answer: D 디폴트라우트설정을위해사용되는명령어는? QUESTION 110 If IP routing is enabled, which two commands set the gateway of last resort to the default gateway?(choose two.) A. ip default-gateway B. ip route C. ip default-network D. ip default-route E. ip route Answer: CE IP Routing 이 enable 상태라고가정했을때, last resort(?) 의게이트웨이를디폴트게이트웨이로설정하기위해사용하는두가지명령은? QUESTION 111 Which command would you configure globally on a Cisco router that would allow you to view directly connected Cisco devices? A. enable cdp B. cdp enable C. cdp run D. run cdp Answer: C

41 일반적으로시스코라우터에서, 직접연결된시스코장비를보기위해사용하는명령은? QUESTION 112 Which command is used to see the path taken by packets across an IP network? A. show ip route B. show route C. traceroute D. trace ip route Answer: C 네트워크상의패킷경로이동을보기위해사용하는명령어는? QUESTION 113 Which command is used to debug a ping command? A. debug icmp B. debug ip icmp C. debug tcp D. debug packet Answer: B 어떤 Ping 명령을시행한후, 그이상여부등을확인하기위해사용하는명령어는? QUESTION 114 Which command displays CPU utilization? A. show protocols B. show process C. show system D. show version Answer: B CPU 이용상태를보기위해사용하는명령어는? QUESTION 115 When configuring a serial interface on a router, what is the default encapsulation? A. atm-dxi B. frame-relay C. hdlc D. lapb E. ppp Answer: C 하나의라우터에서여러개의인터페이스를설정할때, 초기값으로설정된 encapsulation 은어느것인가?

42 QUESTION 116 What must be set correctly when configuring a serial interface so that higher-level protocols calculate the best route? A. bandwidth B. delay C. load D. reliability Answer: A 하나의시리얼인터페이슬설정할때, 보다상위레벨의프로토콜들의최적경로를산출할수있도록하기위해, 정확하게설정돼야하는사항은무엇인가? QUESTION 117 A company implements video conferencing over IP on their Ethernet LAN. The users notice that the network slows down, and the video either stutters or fails completely. What is the most likely reason for this? A. minimum cell rate (MCR) B. quality of service (QoS) C. modulation D. packet switching exchange (PSE) E. reliable transport protocol (RTP) Answer: B 한회사가그들의이더넷 LAN 을이용해서외부 IP 와의화상회의 (?) 가가능한서비스를시도했는데, 완전실패로돌아가게됐다. 이유인즉슨, 회선속도도느리고, 화상도자주끊기는등의문제, 그렇다면이와같이실패하게된가장개연성이높은이유는무엇이라생각할수있을까? QUESTION 118 Which layer in the OSI reference model is responsible for determining the availability of the receiving program and checking to see if enough resources exist for that communication? A. transport B. network C. presentation D. session E. application Answer: E OSI 모델중에서수힌프로그램의유효성 (?) 을결정하고, 통신을위한충분한자원의소유여부를체크하는일등과관련된계층은? QUESTION 119 Data transfer is slow between the source and destination. The quality of service requested by the transport layer in the OSI reference model is not being maintained. To fix this issue, at which layer should the troubleshooting process begin?

43 A. presentation B. session C. transport D. network E. physical Answer: D 출발지에서목적지까지의데이터전송이느린상태에있다. OSI 모델중전송계층에서요구되는 QoS 는유지되지않고있는실정이라고할때, 이문제를처리하기위해, 어느계층에서먼저검사과정이시작되어야할까? QUESTION 120 Which protocols are found in the network layer of the OSI reference model and are responsible for path determination and traffic switching? A. LAN B. routing C. WAN D. network Answer: B OSI 계층모델중, 네트워크계층에서사용되고, 또경로결정과 Traffic 처리등에관여하는프로토콜은다음중어느것인가? QUESTION 121 Which command reveals the last method used to powercycle a router? A. show reload B. show boot C. show running-config D. show version Answer: D 라우터에서재시작 (power cycle) 을위해사용된방법을확인할수있는명령은? QUESTION 122 Which three options are valid WAN connectivity methods? (Choose three.) A. PPP B. WAP C. HDLC D. MPLS E. L2TPv3 F. ATM Answer: ACF WAN 을연결하기위한방법으로타당한것은?

44 QUESTION 123 Refer to the exhibit. Which WAN protocol is being used? A. ATM B. HDLC C. Frame Relay D. PPP Answer: C 아래내용을참고하시오. WAN 프로토콜로사용된것은? QUESTION 124 What is the difference between a CSU/DSU and a modem? A. A CSU/DSU converts analog signals from a router to a leased line; a modem converts analog signals from a router to a leased line. B. A CSU/DSU converts analog signals from a router to a phone line; a modem converts digital signals from a router to a leased line. C. A CSU/DSU converts digital signals from a router to a phone line; a modem converts analog signals from a router to a phone line. D. A CSU/DSU converts digital signals from a router to a leased line; a modem converts digital signals from a router to a phone line. Answer: D CSU/DSU 와모뎀의차이점은? QUESTION 125 A network administrator must configure 200 switch ports to accept traffic from only the currently attached host devices. What would be the most efficient way to configure MAC-level security on all these ports? A. Visually verify the MAC addresses and then telnet to the switches to enter the switchport-port security mac-address command. B. Have end users their MAC addresses. Telnet to the switch to enter the switchport-port security mac-address command. C. Use the switchport port-security MAC address sticky command on all the switch ports that have end devices connected to them. D. Use show mac-address-table to determine the addresses that are associated with each port and then enter the commands on each switch for MAC address port-security. Answer: C

45 관리자는해당포트에연결된호스트에서만트래픽을허용하도록 200 개스위치포트를구성하려고한다. 해당포트에 MAC 주소기반의보안설정을하기위한가장효과적인방법은? QUESTION 126 When troubleshooting a Frame Relay connection, what is the first step when performing a loopback test? A. Set the encapsulation of the interface to HDLC. B. Place the CSU/DSU in local-loop mode. C. Enable local-loop mode on the DCE Frame Relay router. D. Verify that the encapsulation is set to Frame Relay. Answer: A 프레임릴레이에서연결문제를해결하기위해루프백테스트를하기위한첫번째단계는무엇인가? QUESTION 127 What occurs on a Frame Relay network when the CIR is exceeded? A. All TCP traffic is marked discard eligible. B. All UDP traffic is marked discard eligible and a BECN is sent. C. All TCP traffic is marked discard eligible and a BECN is sent. D. All traffic exceeding the CIR is marked discard eligible. Answer: D CIR 이초과되었을때프레임릴레이네트워크에서발생할수있는것은? 팁 : CIR 이란? isp 업체에서프레임릴레이가입자에게트래픽혼잡시보장하는평균적인대여폭 QUESTION 128 What are two characteristics of Frame Relay point-to-point subinterfaces? (Choose two.) A. They create split-horizon issues. B. They require a unique subnet within a routing domain. C. They emulate leased lines. D. They are ideal for full-mesh topologies. E. They require the use of NBMA options when using OSPF. Answer: BC 프레임릴레이포인트투포인트서브인터페이스의 2 가지특징은? QUESTION 129 Refer to the exhibit. Addresses within the range /24 are not being translated to the /16 range. Which command shows if /24 are allowed inside addresses?

46 A. debug ip nat B. show access-list C. show ip nat translation D. show ip nat statistics Answer: B 아래내용을참고하시오 /24 대역의주소는 /16 주소로변환되지않는다 /24 대역이로컬주소 (inside address) 로변환가능한지여부를확인할수있는명령은? QUESTION 130 A wireless client cannot connect to an b/g BSS with a b/g wireless card. The client section of the access point does not list any active WLAN clients. What is a possible reason for this? A. The incorrect channel is configured on the client. B. The client's IP address is on the wrong subnet. C. The client has an incorrect pre-shared key. D. The SSID is configured incorrectly on the client. Answer: D b/g 무선랜카드를장착한사용자가 b/g BSS 에연결되지않는다. 사용자가접속하려는지점의 access point 에는활성화된 WLAN 클라이언트가리스트가없다. 이러한문제의원인으로가능한것은? QUESTION 131 Which two features did WPAv1 add to address the inherent weaknesses found in WEP? (Choose two.) A. a stronger encryption algorithm B. key mixing using temporal keys C. shared key authentication D. a shorter initialization vector E. per frame sequence counters Answer: BE WEP( 무선 LAN 간의보안을위해사용되는기술 ) 의근본적인취약점을보완한 (add to address???) WPAv1 의특성 2 가지는? QUESTION 132 Which two wireless encryption methods are based on the RC4 encryption algorithm? (Choose two.) A. WEP B. CCKM

47 C. AES D. TKIP E. CCMP Answer: AD 무선네트워크에서 RC4 암호화알고리즘을기반으로하는 2 가지암호화방법은? QUESTION 133 What are two characteristics of RIPv2? (Choose two.) A. classful routing protocol B. variable-length subnet masks C. broadcast addressing D. manual route summarization E. uses SPF algorithm to compute path Answer: BD RIPv2 의두가지특징은? QUESTION 134 Which two Ethernet fiber-optic modes support distances of greater than 550 meters? A. 1000BASE-CX B. 100BASE-FX C. 1000BASE-LX D. 1000BASE-SX E. 1000BASE-ZX Answer: CE 이더넷에서 550 미터이상을지원하는광케이블을이용한규격은? QUESTION 135 What two things will a router do when running a distance vector routing protocol? (Choose two.) A. Send periodic updates regardless of topology changes. B. Send entire routing table to all routers in the routing domain. C. Use the shortest-path algorithm to the determine best path. D. Update the routing table based on updates from their neighbors. E. Maintain the topology of the entire network in its database. Answer: AD 거리 - 벡터라우팅프로토콜이작동되는라우터의동작방식 2 가지는?

48 Exam B QUESTION 1 Refer to the exhibit. According to the routing table, where will the router send a packet destined for ? A B C D Answer: C 아래내용을참고하시오. 라우팅테이블을참고하였을때목적지가 로향하는패킷은어떤주소로라우팅되는가? QUESTION 2 Which command shows if an access list is assigned to an interface? A. show ip interface [interface] access-lists B. show ip access-lists interface [interface] C. show ip interface [interface] D. show ip access-lists [interface] Answer: C 인터페이스에설정된엑세스리스트를확인할수있는명령은? QUESTION 3 Refer to the exhibit. Which rule does the DHCP server use when there is an IP address conflict? A. The address is removed from the pool until the conflict is resolved. B. The address remains in the pool until the conflict is resolved. C. Only the IP detected by Gratuitous ARP is removed from the pool. D. Only the IP detected by Ping is removed from the pool. E. The IP will be shown, even after the conflict is resolved. Answer: A

49 아래내용을참고하시오. ip 충돌발생시 DHCP 서버에서적용하는규칙은무엇인가? QUESTION 4 Refer to the exhibit. You are connected to the router as user Mike. Which command allows you to see output from the OSPF debug command? A. terminal monitor B. show debugging C. show sessions D. show ip ospf interface Answer: A 아래내용을참고하시오. Mike 사용자로라우터에접속하였다. OSPF 디버그명령의출력결과를확인할수있는명령은무엇인가? QUESTION 5 Refer to the exhibit. If number 2 is selected from the setup script, what happens when the user runs setup from a privileged prompt? A. Setup is additive and any changes will be added to the config script. B. Setup effectively starts the configuration over as if the router was booted for the first time. C. Setup will not run if an enable secret password exists on the router. D. Setup will not run, because it is only viable when no configuration exists on the router. Answer: A 아래내용을참고하시오. 셋업모드에서 [2] 가선택되었다면, 관리자모드에서 setup 명령실행시발생할수있는일은? QUESTION 6 Refer to the exhibit. Which (config-router) command will allow the network represented on the interface to be advertised by RIP?

50 A. redistribute ethernet0 B. network ethernet0 C. redistribute D. network Answer: D RIP 에의해광고 ( 인접라우터에전송 ) 될인터페이스를대표하는네트워크주소를설정하는명령은? QUESTION 7 Refer to the exhibit. What information can be gathered from the output? A. One router is running RIPv1. B. RIP neighbor is C. The network contains a loop. D. Network is reachable. Answer: D 출력결과를통해알수있는정보는? QUESTION 8 Refer to the exhibit. What type of connection would be supported by the cable diagram shown?

51 A. PC to router B. PC to switch C. server to router D. router to router Answer: B 아래케이블표에서지원하는연결타입은무엇인가? QUESTION 9 Refer to the exhibit. What type of connection would be supported by the cable diagram shown? A. PC to router B. PC to switch C. server to switch D. switch to router Answer: A 아래케이블표에서지원하는연결타입은무엇인가? QUESTION 10 Refer to the exhibit. What can be determined about the router from the console output? A. No configuration file was found in NVRAM. B. No configuration file was found in flash. C. No configuration file was found in the PCMCIA card. D. Configuration file is normal and will load in 15 seconds.

52 Answer: A 아래콘솔출력결과를통해알수있는라우터의정보는무엇인가? QUESTION 11 Refer to the exhibit. What can be determined from the output? A is local to the router. B is local to the router. C will age out in less than 1 minute. D has aged out and is marked for deletion. Answer: B 출력결과를통해알수있는정보는? QUESTION 12 Refer to the exhibit. Which command would allow the translations to be created on the router? A. ip nat pool mynats prefix-length 19 B. ip nat outside mynats prefix-length 19 C. ip nat pool mynats prefix-length 18 D. ip nat outside mynats prefix-length 18 Answer: A 아래보기처럼라우터에서주소변환 (NAT) 이가능하도록하는명령은무엇인가? QUESTION 13 Refer to the exhibit. An administrator pings the default gateway at and sees the output as shown. At which OSI layer is the problem?

53 A. data link layer B. application layer C. access layer D. session layer E. network layer Answer: E 관리자는디폴트게이트웨이 ( ) 로 ping 명령을하였다. 출력결과는다음과같다. OSI 계층중어떤계층에서발생한문제인가? QUESTION 14 Refer to the exhibit. Which value will be configured for Default Gateway of the Local Area Connection? A B C D Answer: B

54 아래보기에서로컬영역연결시디폴트게이트웨이로설정가능한주소는? QUESTION 15 Refer to the exhibit. The user at Workstation B reports that Server A cannot be reached. What is preventing Workstation B from reaching Server A? A. The IP address for Server A is a broadcast address. B. The IP address for Workstation B is a subnet address. C. The gateway for Workstation B is not on the same subnet. D. The gateway for Server A is not on the same subnet. Answer: D 워크스테이션 B 의사용자는서버 A 에연결이되지않는다고보고하였다. 워크스테이션 B 에서서버 A 에연결이되지않는원인은무엇인가? QUESTION 16 Refer to the exhibit. What does the (*) represent in the output? A. Packet is destined for a local interface to the router. B. Packet was translated, but no response was received from the distant device. C. Packet was not translated, because no additional ports are available. D. Packet was translated and fast switched to the destination. Answer: D 아래내용중 * 가의미하는것은무엇인가? QUESTION 17

55 Refer to the exhibit. What command sequence will enable PAT from the inside to outside network? A. (config) ip nat pool isp-net netmask overload B. (config-if) ip nat outside overload C. (config) ip nat inside source list 1 interface ethernet1 overload D. (config-if) ip nat inside overload Answer: C 아래보기를고려했을때 inside 에서 outside 로향하는 PAT 를설정하기위해다음으로실행할명령은무엇인가? QUESTION 18 Refer to the exhibit. What will happen to HTTP traffic coming from the Internet that is destined for if the traffic is processed by this ACL? A. Traffic will be dropped per line 30 of the ACL. B. Traffic will be accepted per line 40 of the ACL. C. Traffic will be dropped, because of the implicit deny all at the end of the ACL. D. Traffic will be accepted, because the source address is not covered by the ACL. Answer: C 만약아래보기의 ACL 이적용되는 HTTP 트래픽의목적지가 일때예상되는결과는무엇인가? QUESTION 19 Refer to the exhibit. Which statement describes the effect that the Router1 configuration has on devices in the subnet when they try to connect to SVR-A using Telnet or SSH?

56 A. Devices will not be able to use Telnet or SSH. B. Devices will be able to use SSH, but not Telnet. C. Devices will be able to use Telnet, but not SSH. D. Devices will be able to use Telnet and SSH. Answer: B 라우터 1 은 서브네트워크에속한장비들에대해환경설정이되어있다. 해당장비들이 Telnet 과 SSH 를통해 SVR-A 에접속하려고할때어떤영향을미치는지설명한것은? QUESTION 20 What are three advantages of VLANs? (Choose three.) A. VLANs establish broadcast domains in switched networks. B. VLANs utilize packet filtering to enhance network security. C. VLANs provide a method of conserving IP addresses in large networks. D. VLANs provide a low-latency internetworking alternative to routed networks. E. VLANs allow access to network services based on department, not physical location. F. VLANs can greatly simplify adding, moving, or changing hosts on the network. Answer: AEF VLAN 의장점 3 가지는? QUESTION 21 An administrator would like to configure a switch over a virtual terminal connection from locations outside of the local LAN. Which of the following are required in order for the switch to be configured from a remote location? (Choose two.) A. The switch must be configured with an IP address, subnet mask, and default gateway. B. The switch must be connected to a router over a VLAN trunk. C. The switch must be reachable through a port connected to its management VLAN.

57 D. The switch console port must be connected to the Ethernet LAN. E. The switch management VLAN must be created and have a membership of at least one switch port. F. The switch must be fully configured as an SNMP agent. Answer: AC 로컬 LAN 외부에서가상터미널를통해스위치를설정하고자한다. 외부에서스위치설정을위해필요한것은무엇인가? QUESTION 22 Which of the following host addresses are members of networks that can be routed across the public Internet? (Choose three.) A B C D E F Answer: CEF 인터넷으로라우팅이가능한네트워크의호스트주소는? QUESTION 23 Given a subnet mask of , which of the following addresses can be assigned to network hosts? (Choose three.) A B C D E F Answer: BCD 서브넷마스크가 로주어졌을때, 호스트에할당할수있는주소는? QUESTION 24 Which of the following are benefits of VLANs? (Choose three.) A. They increase the size of collision domains. B. They allow logical grouping of users by function. C. They can enhance network security. D. They increase the size of broadcast domains while decreasing the number of collision domains. E. They increase the number of broadcast domains while decreasing the size of the broadcast domains. F. They simplify switch administration. Answer: BCE VLAN 를사용하는이점은?

58 QUESTION 25 Which router IOS commands can be used to troubleshoot LAN connectivity problems? (Choose three.) A. ping B. tracert C. ipconfig D. show ip route E. winipcfg F. show interfaces Answer: ADF LAN 연결문제를해결하기위해사용되는 IOS 명령어는? QUESTION 26 Which of the following are true regarding bridges and switches? (Choose two.) A. Bridges are faster than switches because they have fewer ports. B. A switch is a multiport bridge. C. Bridges and switches learn MAC addresses by examining the source MAC address of each frame received. D. A bridge will forward a broadcast but a switch will not. E. Bridges and switches increase the size of a collision domain. Answer: BC 브리지와스위치에대한설명으로맞는것은? QUESTION 27 What are some of the advantages of using a router to segment the network? (Choose two.) A. Filtering can occur based on Layer 3 information. B. Broadcasts are eliminated. C. Routers generally cost less than switches. D. Broadcasts are not forwarded across the router. E. Adding a router to the network decreases latency. Answer: AD 네트워크세그먼트에서라우터를사용하는이점은? QUESTION 28 Which of the following statements are true regarding bridges and switches? (Choose 3.) A. Switches are primarily software based while bridges are hardware based. B. Both bridges and switches forward Layer 2 broadcasts. C. Bridges are frequently faster than switches. D. Switches have a higher number of ports than most bridges. E. Bridges define broadcast domains while switches define collision domains. F. Both bridges and switches make forwarding decisions based on Layer 2 addresses. Answer: BDF

59 브리지와스위치에대한설명으로맞는것은? QUESTION 29 Which characteristics are representative of a link-state routing protocol? (Choose three.) A. provides common view of entire topology B. exchanges routing tables with neighbors C. calculates shortest path D. utilizes event-triggered updates E. utilizes frequent periodic updates Answer: ACD 링크 - 상태라우팅프로토콜의특징을나타내는것은? QUESTION 30 Which of the following statements describe the network shown in the graphic? (Choose two.) A. There are two broadcast domains in the network. B. There are four broadcast domains in the network. C. There are six broadcast domains in the network. D. There are four collision domains in the network. E. There are five collision domains in the network. F. There are seven collision domains in the network. Answer: AF 아래네트워크이미지에대해설명한문장중맞는것은? QUESTION 31 Use the output from the router shown in the graphic above to determine which of the following are correct. (Choose two.)

60 A. Router John uses a link-state routing protocol. B. Router John will receive routing updates on the Serial0/0 interface. C. Router John will receive routing updates on the Serial0/1 interface. D. Router John will send routing updates out the Serial0/0 interface. E. Router John will send routing updates out the FastEthernet0/0 interface. F. Router John will send routing updates out the Serial0/1 interface. Answer: BD 라우터출력결과를참고하여올바른문장을고르시오? QUESTION 32 A national retail chain needs to design an IP addressing scheme to support a nationwide network. The company needs a minimum of 300 sub-networks and a maximum of 50 host addresses per subnet. Working with only one Class B address, which of the following subnet masks will support an appropriate addressing scheme? (Choose two.) A B C D E F Answer: BE 전국소매연합회는전국적인네트워크를구성하기위한 IP 분배정책에대한구성이필요하다. 회사는최소 300 개의서브넷과서브넷당최대 50 개의호스트주소를필요로한다. 아래내용중 B 클래스만을가지고구성시에해당주소배정계획에적합한서브넷마스크는무엇인가? QUESTION 33 Given the address /28, which of the following are valid host addresses on this subnet? (Choose two.)

61 A B C D E Answer: AC /28 주소가주었졌을때아래내용중동일서브넷에속한호스트주소는무엇인가? QUESTION 34 An inbound access list has been configured on a serial interface to deny packet entry for TCP and UDP ports 21, 23 and 25. What types of packets will be permitted by this ACL? (Choose three.) A. FTP B. Telnet C. SMTP D. DNS E. HTTP F. POP3 Answer: DEF TCP 와 UDP 21, 23, 25 번포트를사용하는패킷을 deny 하기위해시리얼인터페이스에인바운드 (inbound) 엑세스리스트가설정되었다. ACL 에의해허용가능한패킷타입은무엇인가? QUESTION 35 Which are valid modes for a switch port used as a VLAN trunk? (Choose three.) A. transparent B. auto C. on D. desirable E. blocking F. forwarding Answer: BCD VLAN 트렁크로사용되는스위치포트의유효모드는무엇인가? QUESTION 36 OSPF routing uses the concept of areas. What are the characteristics of OSPF areas? (Choose three.) A. Each OSPF area requires a loopback interface to be configured. B. Areas may be assigned any number from 0 to C. Area 0 is called the backbone area. D. Hierarchical OSPF networks do not require multiple areas. E. Multiple OSPF areas must connect to area 0. F. Single area OSPF networks must be configured in area 1. Answer: BCE

62 OSPF 라우팅에서는에어리어 (area) 개념이사용된다. OSPF 의에어리어의특성은무엇인가? QUESTION 37 What information does a router running a link-state protocol use to build and maintain its topological database? (Choose two.) A. hello packets B. SAP messages sent by other routers C. LSAs from other routers D. beacons received on point-to-point links E. routing tables received from other link-state routers F. TTL packets from designated routers Answer: AC 어떤정보를통해라우터는링크 - 상태프로토콜을이용하여토폴로지데이터베이스를구성, 관리하는가? QUESTION 38 Which statements describe the routing protocol OSPF? (Choose three.) A. It supports VLSM. B. It is used to route between autonomous systems. C. It confines network instability to one area of the network. D. It increases routing overhead on the network. E. It allows extensive control of routing updates. F. It is simpler to configure than RIP v2. Answer: ACE OSPF 라우팅프로토콜에대한설명중맞는것은? QUESTION 39 The switches shown in the diagram, Core and Core2, are both Catalyst 2950s. The addressing scheme for each company site is as follows: Router Ethernet port - 1st usable address Core - 2nd usable address Core2-3rd usable address For this network, which of the following commands must be configured on Core2 to allow it to be managed remotely from any subnet on the network? (Choose three.) A. Core2(config)# interface f0/0 Core2(config-if)# ip address B. Core2(config)# interface vlan 1

63 Core2(config-if)# ip address C. Core2(config)# line con 0 Core2(config-line)# password cisco D. Core2(config)# line vty 0 4 Core2(config-line)# password cisco E. Core2(config)# ip default-gateway F. Core2(config)# ip route Answer: BDE 스위치구성은아래그림과같다. Core 와 Core 2 스위치는카탈리스트 2950 제품이다. 각회사의주소구성은다음과같다. 라우터이더넷포트 - 사용가능주소중첫번째주소 Core - 사용가능주소중두번째주소 Core2 - 사용가능주소중 3 번째주소이러한네트워크구성을위해서모든서브넷에서원격제어가가능하도록 Core2 스위치에서설정해야하는명령들은무엇인가? QUESTION 40 An administrator is unsuccessful in adding VLAN 50 to a switch. While troubleshooting the problem, the administrator views the output of the show vtp status command, which is displayed in the graphic. What commands must be issued on this switch to add VLAN 50 to the database? (Choose two.) A. Switch(config-if)# switchport access vlan 50 B. Switch(vlan)# vtp server C. Switch(config)# config-revision 20 D. Switch(config)# vlan 50 name Tech E. Switch(vlan)# vlan 50 F. Switch(vlan)# switchport trunk vlan 50 Answer: BE 관리자는 VLAN 50 을스위치에추가하는데실패하였다. 이문제를해결하기위해관리자는 show vtp status 명령의실행결과를확인하였다. 실행결과는아래그림과같다. VLAN 50 을추가하기위해어떤명령이수행되어야하는가? QUESTION 41 Which of the following IP addresses fall into the CIDR block of /22? (Choose three.) A B C

64 D E F Answer: BCE /22 의 CIDR 블록 ( 슈퍼넷팅 ) 에포함되는 IP 주소는? QUESTION 42 Which of the following are types of flow control? (Choose three.) A. buffering B. cut-through C. windowing D. congestion avoidance E. load balancing Answer: ACD 아래내용중흐름제어기법을나열한것은무엇인가? QUESTION 43 Which destination addresses will be used by Host A to send data to Host C? (Choose two.) A. the IP address of Switch 1 B. the MAC address of Switch 1 C. the IP address of Host C D. the MAC address of Host C E. the IP address of the router's E0 interface F. the MAC address of the router's E0 interface Answer: CF 호스트 A 에서호스트 C 로데이터전송시사용되는목적지주소는? QUESTION 44 Host 1 is trying to communicate with Host 2. The e0 interface on Router C is down. Which of the following are true? (Choose two.)

65 A. Router C will use ICMP to inform Host 1 that Host 2 cannot be reached. B. Router C will use ICMP to inform Router B that Host 2 cannot be reached. C. Router C will use ICMP to inform Host 1, Router A, and Router B that Host 2 cannot be reached. D. Router C will send a Destination Unreachable message type. E. Router C will send a Router Selection message type. F. Router C will send a Source Quench message type. Answer: AD 호스트 1 은호스트 2 와통신하고자한다. 라우터 C 의 e0 인터페이스는다운상태이다. 아래내용중맞는것은? QUESTION 45 To configure the VLAN trunking protocol to communicate VLAN information between two switches, what two requirements must be met? (Choose two.) A. Each end of the trunk line must be set to IEEE 802.1E encapsulation. B. The VTP management domain name of both switches must be set the same. C. All ports on both the switches must be set as access ports. D. One of the two switches must be configured as a VTP server. E. A rollover cable is required to connect the two switches together. F. A router must be used to forward VTP traffic between VLANs. Answer: BD 두스위치간에 VLAN 정보교환을위해 VLAN 트렁킹프로토콜을구성할경우반드시일치해야되는것은? QUESTION 46 Which of the following describe the process identifier that is used to run OSPF on a router? (Choose two.) A. It is locally significant. B. It is globally significant. C. It is needed to identify a unique instance of an OSPF database. D. It is an optional parameter required only if multiple OSPF processes are running on the router. E. All routers in the same OSPF area must have the same process ID if they are to exchange routing information. Answer: AC OSPF 작동시에사용되는프로세스 id 에대한설명으로맞는것은? QUESTION 47

66 What functions do routers perform in a network? (Choose two.) A. packet switching B. access layer security C. path selection D. VLAN membership assignment E. bridging between LAN segments F. microsegmentation of broadcast domains Answer: AC 네트워크에서라우터의기능에대한설명으로맞는것은? QUESTION 48 Which series of commands will configure router R1 for LAN-to-LAN communication with router R2? The enterprise network address is /24 and the routing protocol in use is RIP. (Choose three.) A. R1(config)# interface ethernet 0 R1(config-if)# ip address R1(config-if)# no shutdown B. R1(config)# interface ethernet 0 R1(config-if)# ip address R1(config-if)# no shutdown C. R1(config)# interface serial 0 R1(config-if)# ip address R1(config-if)# clock rate D. R1(config)# interface serial 0 R1(config-if)# ip address R1(config-if)# no shutdown E. R1(config)# router rip R1(config-router)# network R1(config-router)# network F. R1(config)# router rip R1(config-router)# version 2 R1(config-router)# network Answer: ADF R1 라우터에서 R2 라우터를통해 LAN 과 LAN 통신을구성하고자할때 R1 의환경설정을위한명령어들의순서를나열한것은무엇인가? 단, 네트워크주소는 /24 이고 RIP 라우팅프로토콜이구동중이다. QUESTION 49 A network administrator wants to ensure that only the server can connect to port Fa0/1 on a Catalyst switch. The server is plugged into the switch Fa0/1 port and the network administrator is about to bring the server online. What can the administrator do to ensure that only the MAC address of the server is allowed by switch port Fa0/1? (Choose two.)

67 A. Configure port Fa0/1 to accept connections only from the static IP address of the server. B. Employ a proprietary connector type on Fa0/1 that is incompatible with other host connectors. C. Configure the MAC address of the server as a static entry associated with port Fa0/1. D. Bind the IP address of the server to its MAC address on the switch to prevent other hosts from spoofing the server IP address. E. Configure port security on Fa0/1 to reject traffic with a source MAC address other than that of the server. F. Configure an access list on the switch to deny server traffic from entering any port other than Fa0/1. Answer: CE 관리자는카탈리스트스위치 Fa0/1 포트에서버만이연결할수있기를바라고있다. 서버는스위치 Fa0/1 포트에연결되어있고서버를인터넷에연결하려고한다. 서버의 Mac 주소만이스위치 Fa0/1 포트에접속할수있도록하려면어떻게해야하는가? QUESTION 50 The internetwork infrastructure of company XYZ consists of a single OSPF area as shown in the graphic. There is concern that a lack of router resources is impeding internetwork performance. As part of examining the router resources, the OSPF DRs need to be known. All the router OSPF priorities are at the default and the router IDs are shown with each router. Which routers are likely to have been elected as DR? (Choose two.) A. Corp-1 B. Corp-2 C. Corp-3 D. Corp-4 E. Branch-1 F. Branch-2 Answer: DF XYZ 회사의네트워크구성도는아래그림과같이 OSPF 단일에어리어로구성되어있다. 부족한라우터리소스는네트워크성능에지장을주는부분에대해염려하고있다. 라우터리소스를체크하는중에 OSPF 는 DR 선정이필요하다는것을알게되었다. 모든라우터의우선순위는디폴트로되어있으며각각의 router id 는다음과같다. 어떤라우터가 DR 라우터로선출되는가? QUESTION 51 At which layers of the OSI model do WANs operate? (Choose two.) A. application layer

68 B. session layer C. transport layer D. network layer E. datalink layer F. physical layer Answer: EF WAN 구간에서작동되는 OSI 계층은? QUESTION 52 Which routing protocols can be used within the enterprise network shown in the diagram? (Choose three.) A. RIP v1 B. RIP v2 C. IGRP D. OSPF E. BGP F. EIGRP Answer: BDF 아래그림과같은대규모네트워크에서사용되는라우팅프로토콜은? QUESTION 53 Refer to the graphic. R1 is unable to establish an OSPF neighbor relationship with R3. What are possible reasons for this problem? (Choose two.) A. All of the routers need to be configured for backbone Area 1. B. R1 and R2 are the DR and BDR, so OSPF will not establish neighbor adjacency with R3.

69 C. A static route has been configured from R1 to R3 and prevents the neighbor adjacency from being established. D. The hello and dead interval timers are not set to the same values on R1 and R3. E. EIGRP is also configured on these routers with a lower administrative distance. F. R1 and R3 are configured in different areas. Answer: DF R1 은 OSPF 에서 R3 와네이버관계를맺을수없다. 이에대한원인은무엇인가? QUESTION 54 Which statements are true about EIGRP successor routes? (Choose two.) A. A successor route is used by EIGRP to forward traffic to a destination. B. Successor routes are saved in the topology table to be used if the primary route fails. C. Successor routes are flagged as "active" in the routing table. D. A successor route may be backed up by a feasible successor route. E. Successor routes are stored in the neighbor table following the discovery process. Answer: AD EIGRP successor 경로에관한설명중옳은것은? 참고 EIGRP 라우터에는 Successor 와 Feasible successor 가있다. Successor 는가장빠른경로로라우팅테이블에올라오는경로이고, Feasible successor 는가능한모든경로를저장하고있다. 만약 Successor 가실패하면 Feasible successor 중가장좋은경로가새로운 Successor 가된다 QUESTION 55 Refer to the diagram. All hosts have connectivity with one another. Which statements describe the addressing scheme that is in use in the network? (Choose three.) A. The subnet mask in use is B. The subnet mask in use is C. The IP address can be assigned to hosts in VLAN1 D. The IP address can be assigned to hosts in VLAN1 E. The LAN interface of the router is configured with one IP address. F. The LAN interface of the router is configured with multiple IP addresses. Answer: BCF

70 모든호스트는서로연결되어있다. 해당네트워크에서사용되는주소형식에대한설명으로맞는것은? QUESTION 56 Refer to the diagram. Which three statements describe the router port configuration and the switch port configuration as shown in the topology? (Choose three.) A. The Router1 WAN port is configured as a trunking port. B. The Router1 port connected to Switch1 is configured using subinterfaces. C. The Router1 port connected to Switch1 is configured as 10 Mbps. D. The Switch1 port connected to Router1 is configured as a trunking port. E. The Switch1 port connected to Host B is configured as an access port. F. The Switch1 port connected to Hub1 is configured as full duplex. Answer: BDE 아래토폴로지를참고하여라우터와스위치의포토설정에대한설명으로맞는것을고르시오? QUESTION 57 Which routing protocols will support the following IP addressing scheme? (Choose three.) Network /26 Network /27 Network /27 Network /30 Network /30 A. RIP version 1 B. RIP version 2 C. IGRP D. EIGRP E. OSPF Answer: BDE 아래와같은 ip 주소형식을지원하는라우팅프로토콜은무엇인가? QUESTION 58 Refer to the partial command output shown. Which two statements are correct regarding the router hardware? (Choose two.)

71 A. Total RAM size is 32 KB. B. Total RAM size is KB (16 MB). C. Total RAM size is KB (64 MB). D. Flash size is 32 KB. E. Flash size is KB (16 MB). F. Flash size is KB (64 MB). Answer: CE 아래내용은명령에따른출력결과의일부이다. 라우터의하드웨어에대한설명으로맞는것은무엇인가? QUESTION 59 The Ethernet networks connected to router R1 in the graphic have been summarized for router R2 as /20 Which of the following packet destination addresses will R2 forward to R1, according to this summary? (Choose two.) A B C D E F Answer: AD 라우터 R1 에연결된이더넷네트워크는 R2 에 /20 으로축약되어전송된다. 축약정보를고려했을때, R2 에서 R1 로포워드가가능한패킷의목적지주소로알맞은것은? QUESTION 60 The show interfaces serial 0/0 command resulted in the output shown in the graphic. What are possible causes for this interface status? (Choose three.)

72 A. The interface is shut down. B. No keepalive messages are received. C. The clockrate is not set. D. No loopback address is set. E. No cable is attached to the interface. F. There is a mismatch in the encapsulation type. Answer: BCF [show interface serial 0/0] 명령의출력결과는아래와같다. 아래와같은출력결과가나타나는원인은무엇인가? QUESTION 61 Which of the following describe private IP addresses? (Choose two.) A. addresses chosen by a company to communicate with the Internet B. addresses that cannot be routed through the public Internet C. addresses that can be routed through the public Internet D. a scheme to conserve public addresses E. addresses licensed to enterprises or ISPs by an Internet registry organization Answer: BD 사설 ip 에대한설명으로맞는것은? QUESTION 62 Refer to the exhibit. The network shown in the diagram is experiencing connectivity problems. Which of the following will correct the problems? (Choose two.) A. Configure the gateway on Host A as

73 B. Configure the gateway on Host B as C. Configure the IP address of Host A as D. Configure the IP address of Host B as E. Configure the masks on both hosts to be F. Configure the masks on both hosts to be Answer: BD 아래네트워크는연결상의문제점을겪고있다. 문제를올바르게수정한것은무엇인가? QUESTION 63 A network associate is trying to understand the operation of the FLD Corporation by studying the network in the exhibit. The associate knows that the server in VLAN 4 provides the necessary resources to support the user hosts in the other VLANs. The associate needs to determine which interfaces are access ports. Which interfaces are access ports? (Choose three.) A. Switch1 - Fa 0/2 B. Switch1 - Fa 0/9 C. Switch2 - Fa 0/3 D. Switch2 - Fa 0/4 E. Switch2 - Fa 0/8 F. Router - Fa 1/0 Answer: ACD 네트워크관리자는아래네트워크그림을통해 FLD 회사의작동상태를알고자한다. 관리자는 VLAN4 에속한서버는다른 VLAN 에속한사용자호스트를지원하기위해필요한리소스를제공하고있다는것을알고있다. 관리자는액세스포트로작동할인터페이스를선정해야한다. 액세스포트로작동하는인터페이스는무엇인가? QUESTION 64 Refer to the exhibit. Which destination addresses will Host A use to send data to Host B? (Choose two.)

74 A. the IP address of Switch1 B. the IP address of Router1 Fa0/0 C. the IP address of HostB D. the MAC address of Switch1 E. the MAC address of Router1 Fa0/0 F. the MAC address of HostB Answer: CE 호스트 A 에서호스트 B 로데이터전송시목적지주소로사용되는것은? QUESTION 65 The network security policy requires that only one host be permitted to attach dynamically to each switch interface. If that policy is violated, the interface should shut down. Which two commands must the network administrator configure on the 2950 Catalyst switch to meet this policy? (Choose two.) A. Switch1(config-if)# switchport port-security maximum 1 B. Switch1(config)# mac-address-table secure C. Switch1(config)# access-list 10 permit ip host D. Switch1(config-if)# switchport port-security violation shutdown E. Switch1(config-if)# ip access-group 10 Answer: AD 네트워크보안정책에서는각각의스위치인터페이스에하나의호스트만이동적으로접근하는것을요구하고있다. 만약해당정책을위반시에는해당인터페이스는 shutdown 을하고자한다. 카탈리스트 2950 스위치에서해당정책을충족하기위해필요한 2 가지명령은무엇인가? QUESTION 66 Refer to the graphic. A static route to the /24 network is to be configured on the HFD router. Which commands will accomplish this? (Choose two.)

75 A. HFD(config)# ip route fa0/0 B. HFD(config)# ip route C. HFD(config)# ip route fa0/0 D. HFD(config)# ip route E. HFD(config)# ip route F. HFD(config)# ip route Answer: CD /24 네트워크에대한스태틱라우트가 HFD 라우터에설정되어있다. 이러한조건을구성할수있는명령형식은? QUESTION 67 What should be done prior to backing up an IOS image to a TFTP server? (Choose three.) A. Make sure that the server can be reached across the network. B. Check that authentication for TFTP access to the server is set. C. Assure that the network server has adequate space for the IOS image. D. Verify file naming and path requirements. E. Make sure that the server can store binary files. F. Adjust the TCP window size to speed up the transfer. Answer: ACD IOS 이미지를 TFTP 서버에백업하기위해우선적으로해야하는것은? QUESTION 68 What are the possible trunking modes for a switch port? (Choose three.) A. transparent B. auto C. on D. desirable E. client F. forwarding Answer: BCD 스위치의트링킹모드로가능한것은? QUESTION 69

76 The network has been divided into eight equal subnets. Which of the following IP addresses can be assigned to hosts in the third subnet if the ip subnet-zero command is configured on the router? (Choose three.) A B C D E F Answer: ACD 네트워크는 8 개의서브넷으로분할되었다. 라우터에 subnet-zero 가설정되어있는경우아래주소중호스트에할당가능한주소중세번째서브넷에속한주소는무엇인가? QUESTION 70 Refer to the graphic. Host 1 cannot receive packets from Host 2. Assuming that RIP v1 is the routing protocol in use, what is wrong with the IP configuration information shown? (Choose two.) A. The fa0/1 interface of router R2 has been assigned a broadcast address. B. The fa0/1 network on router R2 overlaps with the LAN attached to R1. C. Host 2 has been assigned the incorrect subnet mask. D. Host 1 has been configured with the subnet mask. E. Host 2 on router R2 is on a different subnet than its gateway. Answer: BC 호스트 1 은호스트 2 로부터패킷을수신하지못한다. RIP v1 라우팅프로토콜이사용중인경우, ip 구성정보중잘못된것은무엇인가? QUESTION 71 What are three valid reasons to assign ports to VLANs on a switch? (Choose three.) A. to make VTP easier to implement B. to isolate broadcast traffic C. to increase the size of the collision domain D. to allow more devices to connect to the network

77 E. to logically group hosts according to function F. to increase network security Answer: BEF 스위치에서포트를 VLAN 에배정하는이유는무엇인가? QUESTION 72 Refer to the topology shown in the exhibit. Which ports will be STP designated ports if all the links are operating at the same bandwidth? (Choose three.) A. Switch A - Fa0/0 B. Switch A - Fa0/1 C. Switch B - Fa0/0 D. Switch B - Fa0/1 E. Switch C - Fa0/0 F. Switch C - Fa0/1 Answer: BCD 아래그림에서링크의대역폭은동일한경우 STP 의지정포트 (Designated port) 로설정된포트는무엇인가? QUESTION 73 Which statements describe two of the benefits of VLAN Trunking Protocol? (Choose two.) A. VTP allows routing between VLANs. B. VTP allows a single switch port to carry information to more than one VLAN. C. VTP allows physically redundant links while preventing switching loops. D. VTP simplifies switch administration by allowing switches to automatically share VLAN configuration information. E. VTP helps to limit configuration errors by keeping VLAN naming consistent across the VTP domain. F. VTP enhances security by preventing unauthorized hosts from connecting to the VTP domain. Answer: DE VLAN 트렁킹프로토콜의장점 2 가지를설명한것은무엇인가? QUESTION 74 What are two results of entering the Switch(config)# vtp mode client command on a Catalyst switch? (Choose two.)

78 A. The switch will ignore VTP summary advertisements. B. The switch will forward VTP summary advertisements. C. The switch will process VTP summary advertisements. D. The switch will originate VTP summary advertisements. E. The switch will create, modify and delete VLANs for the entire VTP domain. Answer: BC 카탈리스트스위치에서 Switch(config)# vtp mode client 명령을수행했을때나타날수있는결과 2 가지는? QUESTION 75 A network administrator issues the ping command and successfully tests connectivity to a host that has been newly connected to the network. Which protocols were used during the test? (Choose two.) A. ARP B. CDP C. DHCP D. DNS E. ICMP Answer: AE 관리자는네트워크에새로히추가된호스트에대해 ping 명령을통해성공적으로연결여부를테스트하였다. 테스트에사용되는프로토콜은무엇인가? QUESTION 76 Refer to the exhibit. Host A is to send data to Host B. How will Router1 handle the data frame received from Host A? (Choose three.) A. Router1 will strip off the source MAC address and replace it with the MAC address on the forwarding FastEthernet interface. B. Router1 will strip off the source IP address and replace it with the IP address on the forwarding FastEthernet interface. C. Router1 will strip off the destination MAC address and replace it with the MAC address of Host B. D. Router1 will strip off the destination IP address and replace it with the IP address of Host B. E. Router1 will forward the data frame out interface FastEthernet0/1. F. Router1 will forward the data frame out interface FastEthernet0/2.

79 Answer: ACF 아래그림에서호스트 A 는호스트 B 로데이터를전송하였다. 라우터 1 은호스트 A 로부터수신한데이터를어떻게처리하는가? QUESTION 77 Refer to the exhibit. What will Router1 do when it receives the data frame shown? (Choose three.) A. Router1 will strip off the source MAC address and replace it with the MAC address c B. Router1 will strip off the source IP address and replace it with the IP address C. Router1 will strip off the destination MAC address and replace it with the MAC address c D. Router1 will strip off the destination IP address and replace it with the IP address of E. Router1 will forward the data packet out interface FastEthernet0/1. F. Router1 will forward the data packet out interface FastEthernet0/2. Answer: ACF 아래그림과같은데이터프레임을수신한경우라우터 1 은어떤작업을수행하는가? QUESTION 78 Refer to the exhibit. Host A pings Host B. What source MAC address and source IP address are contained in the frame as the frame leaves R2 destined for host B?

80 A. abcd.abcd.a001 B. abcd.abcd.b002 C. abcd.abcd.c003 D E F Answer: BD 호스트 A 에서호스트 B 로핑을보냈다. R2 에서호스트 B 로향하는프레임에포함된출발지 Mac 주소와출발지 ip 주소는무엇인가? QUESTION 79 Refer to the exhibit. A network associate has configured OSPF with the command: City(config-router)# network area 0 After completing the configuration, the associate discovers that not all the interfaces are participating in OSPF. Which three of the interfaces shown in the exhibit will participate in OSPF according to this configuration statement? (Choose three.) A. FastEthernet0 /0 B. FastEthernet0 /1 C. Serial0/0 D. Serial0/1.102 E. Serial0/1.103 F. Serial0/1.104

81 Answer: BCD 관리자는아래와같은명령을통해 OSPF 구성을설정하였다. 명령어 : City(config-router)# network area 0 설정을마친후관리자는모든인터페이스가 OSPF 에포함되지는않는다는것을발견하였다. 아래설정내용을참고했을때어떤인터페이스 3 개가 OSPF 에포함되는가? QUESTION 80 A Catalyst 2950 needs to be reconfigured. What steps will ensure that the old configuration is erased? (Choose three.) A. Erase flash. B. Restart the switch. C. Delete the VLAN database. D. Erase the running configuration. E. Erase the startup configuration. F. Modify the configuration register. Answer: BCE 카탈리스트 2950 스위치는재설정이필요하다. 이전설정사항을삭제하는방법은무엇인가? QUESTION 81 Refer to the exhibit. The FMJ manufacturing company is concerned about unauthorized access to the Payroll Server. The Accounting1, CEO, Mgr1, and Mgr2 workstations should be the only computers with access to the Payroll Server. What two technologies should be implemented to help prevent unauthorized access to the server? (Choose two.) A. access lists B. encrypted router passwords C. STP D. VLANs E. VTP F. wireless LANs Answer: AD FMJ 제조회사는 Payroll 서버에의불법적인접근에대해서관심을가지고있다. Accounting1, CEO, Mgr1, Mgr2 워크스테이션만이 Payroll 서버에의접근을허용하고자한다. 서버에의불법적인접근을막을수있는 2 가지기술을고르시오.

82 QUESTION 82 Refer to the exhibit. What commands must be configured on the 2950 switch and the router to allow communication between host 1 and host 2? (Choose two.) A. Router(config)# interface fastethernet 0/0 Router(config-if)# ip address Router(config-if)# no shut down B. Router(config)# interface fastethernet 0/0 Router(config-if)# no shut down Router(config)# interface fastethernet 0/0.1 Router(config-subif)# encapsulation dot1q 10 Router(config-subif)# ip address Router(config)# interface fastethernet 0/0.2 Router(config-subif)# encapsulation dot1q 20 Router(config-subif)# ip address C. Router(config)# router eigrp 100 Router(config-router)# network Router(config-router)# network D. Switch1(config)# vlan database Switch1(config-vlan)# vtp domain XYZ Switch1(config-vlan)# vtp server E. Switch1(config)# interface fastethernet 0/1 Switch1(config-if)# switchport mode trunk F. Switch1(config)# interface vlan 1 Switch1(config-if)# ip default-gateway Answer: BE 호스트 1 과호스트 2 가서로통신할수있도록 2950 스위치와라우터에설정할명령은무엇인가? QUESTION 83 Which three Layer 2 encapsulation types would be used on a WAN rather than a LAN? (Choose three.) A. HDLC B. Ethernet C. Token Ring D. PPP E. FDDI F. Frame Relay

83 Answer: ADF LAN 보다는 WAN 구간의많이사용되는 2 계층에서사용되는인캡슐레이션종류 3 가지는무엇인가? QUESTION 84 Refer to the exhibit. The two connected ports on the switch are not turning orange or green. What would be the most effective steps to troubleshoot this physical layer problem? (Choose three.) A. Ensure that the Ethernet encapsulations match on the interconnected router and switch ports. B. Ensure that cables A and B are straight-through cables. C. Ensure cable A is plugged into a trunk port. D. Ensure the switch has power. E. Reboot all of the devices. F. Reseat all cables. Answer: BDF 스위치에연결된 2 개의포트가오렌지에서녹색 ( 포트상태를나타내는색깔 ) 으로변경되지않는다. 이러한물리적계층의문제를해결하기위한가장효과적인방법은무엇인가? QUESTION 85 What can be determined from the line of show ip route output shown in the exhibit? (Choose two.) A. The next routing update can be expected in 35 seconds. B. The IP address is configured on S0/1. C. The IP address is configured on S0/1. D. This route is using the default administrative distance. E. The network is two hops away from this router. Answer: DE

84 show ip route 명령을통해출력되는아래와같은결과를통해알수있는것은? QUESTION 86 Refer to the exhibit. All of the routers in the network are configured with the ip subnet-zero command. Which network addresses should be used for Link A and Network A? (Choose two.) A. Network A /26 B. Network A /25 C. Network A /26 D. Link A /30 E. Link A /30 F. Link A /30 Answer: BD 모든라우터는 ip subnet-zero 가설정되어있다. A 구간과네트워크 A 에서사용되어지는 ip 주소는무엇인가? QUESTION 87 Which two subnetworks would be included in the summarized address of /20? (Choose two.) A /30 B /30 C /18 D /22 E /22 F /18 Answer: DE /20 네트워크에축약된형태로표시될수있는서브네트워크는무엇인가? QUESTION 88 The network administrator has discovered that the power supply has failed on a switch in the company LAN and that the switch has stopped functioning. It has been replaced with a Cisco Catalyst 2950 series switch. What must be done to ensure that this new switch becomes the root bridge on the network? A. Lower the bridge priority number.

85 B. Change the MAC address of the switch. C. Increase the VTP revision number for the domain. D. Lower the root path cost on the switch ports. E. Assign the switch an IP address with the lowest value. Answer: A 관리자는회사 LAN 에서사용되는스위치의파워서플라이 ( 전원공급장치 ) 가고장난것을확인하였다. 해당스위치는작동을멈춘상태이다. 스위치는카탈리스트 2950 시리즈스위치로대체되었다. 해당스위치가 root bridge 로선정되기위해서설정해야되는것은무엇인가? QUESTION 89 Refer to the exhibit. Assume that all of the router interfaces are operational and configured correctly. How will router R2 be affected by the configuration of R1 that is shown in the exhibit? A. Router R2 will not form a neighbor relationship with R1. B. Router R2 will obtain a full routing table, including a default route, from R1. C. R2 will obtain OSPF updates from R1, but will not obtain a default route from R1. D. R2 will not have a route for the directly connected serial network, but all other directly connected networks will be present, as well as the two Ethernet networks connected to R1. Answer: A 라우터인터페이스는정상작동되며설정또한올바르다고가정했을때아래내용을바탕으로 R1 의설정내용은 R2 에미치는영향은무엇인가? QUESTION 90 Which three IP addresses can be assigned to hosts if the subnet mask is /27 and subnet zero is usable?(choose three.) A B C D E F

86 Answer: ACD 서브넷마스크가 /27 이고 subnet-zero 를적용했을때호스트에할당가능한 ip 주소는? QUESTION 91 Refer to the exhibit. A packet with a source IP address of and a destination IP address of arrives at the HokesB router. What action does the router take? A. forwards the received packet out the Serial0/0 interface B. forwards a packet containing an EIGRP advertisement out the Serial0/1 interface C. forwards a packet containing an ICMP message out the FastEthernet0/0 interface D. forwards a packet containing an ARP request out the FastEthernet0/1 interface Answer: C 출발지 ip 주소는 이고목적지 ip 주소는 인패킷이 HokesB 라우터에도달하였다. 해당라우터는패킷을어떻게처리하는가? QUESTION 92 Refer to the exhibit. From RouterA, a network administrator is able to ping the serial interface of RouterB but unable to ping any of the subnets attached to RouterB. Based on the partial outputs in the exhibit, what could be the problem?

87 A. EIGRP does not support VLSM. B. The EIGRP network statements are incorrectly configured. C. The IP addressing on the serial interface of RouterA is incorrect. D. The routing protocol has summarized on the classful boundary. E. EIGRP has been configured with an invalid autonomous system number. Answer: D RouterA 에서관리자는 RouterB 의시리얼인터페이스로 ping 을하였으나 RouterB 의모든서브넷에 ping 이되지않았다. 출력결과를참고했을때문제점은무엇인가? QUESTION 93 What are three characteristics of the OSPF routing protocol? (Choose three.) A. It converges quickly. B. OSPF is a classful routing protocol. C. It uses cost to determine the best route. D. It uses the DUAL algorithm to determine the best route. E. OSPF routers send the complete routing table to all directly attached routers. F. OSPF routers discover neighbors before exchanging routing information. Answer: ACF OSPF 라우팅프로토콜의 3 가지특성은?

88 QUESTION 94 Refer to the exhibit. SW1 and SW2 have default configurations. What will happen if host 1 sends a broadcast? A. Hosts 2, 3, and 4 will receive the broadcast. B. Hosts 1, 2, 3, and 4 will receive the broadcast. C. Host 2 and the Fa0/0 interface of R1 will receive the broadcast. D. Hosts 1, 2 and the Fa0/0 interface of R1 will receive the broadcast. E. Hosts 1, 2, 3, 4 and interface Fa0/0 of R1 will receive the broadcast. F. Hosts 2, 3, 4, and interfaces Fa0/0 and Fa0/1 of R1 will receive the broadcast. Answer: C SW1 과 SW2 는디폴트로설정되어있다. 호스트 1 에서브로드캐스트를발생했을때어떤결과가발생하는가? QUESTION 95 A router has learned three possible routes that could be used to reach a destination network. Oneroute is from EIGRP and has a composite metric of Another route is from OSPF with a metric of The last is from RIPv2 and has a metric of 4. Which route or routes will the router install in the routing table? A. the OSPF route B. the EIGRP route C. the RIPv2 route D. all three routes E. the OSPF and RIPv2 routes Answer: B 라우터는목적지네트워크에도달할수있는 3 개의경로를확인하였다. 첫째는 EIGRP 를이용한경로이고 metric 은 이다. 두번째는 OSPF 를이용한경로이고 metric 은 782 이다. 마지막경로는 RIP v2 를이용한경로로 metric 은 4 이다. 라우팅테이블에설정된경로중어떤경로를사용하는가? QUESTION 96 For what two purposes does the Ethernet protocol use physical addresses? (Choose two.) A. to uniquely identify devices at Layer 2 B. to allow communication with devices on a different network

89 C. to differentiate a Layer 2 frame from a Layer 3 packet D. to establish a priority system to determine which device gets to transmit first E. to allow communication between different devices on the same network F. to allow detection of a remote device when its physical address is unknown Answer: AE 이더넷프로토콜에서물리주소 (Mac 주소 ) 를사용하는목적 2 가지는? QUESTION 97 As a frame leaves a Layer 3 device, the Layer 2 encapsulation information is changed from what it was when it entered the device. For what two reasons can this happen? (Choose two.) A. The data is moving from 10BASE-TX to 100BASE-TX. B. The WAN encapsulation type has changed. C. The data format has changed from analog to digital. D. The source and destination hosts are in the same subnet. E. The source and destination MAC addresses have changed. Answer: BE L3 장비에서출발하는프레임은해당장비에도달했을때의가지고있던 2 계층인캡슐레이션정보는변경된후출발하게된다. 이러한현상이발생하는 2 가지이유는? QUESTION 98 Which two statements are true regarding EIGRP? (Choose two.) A. Passive routes are in the process of being calculated by DUAL. B. EIGRP supports VLSM, route summarization, and routing update authentication. C. EIGRP exchanges full routing table information with neighboring routers with every update. D. If the feasible successor has a higher advertised distance than the successor route, it becomes the primary route. E. A query process is used to discover a replacement for a failed route if a feasible successor is not identified from the current routing information. Answer: BE EIGRP 에대한설명으로올바른내용 2 개는? QUESTION 99 Refer to the exhibit. In the communication between host 1 and host 2 over the point-to-point WAN, which protocol or technology is represented by dashed line A?

90 A. IP B. T1 C. PPP D. IEEE Answer: A WAN (point-to-point) 기반에서호스트 1 과호스트 2 의통신을위해 line A 를대표하는프로토콜또는기술은무엇인가? QUESTION 100 Refer to the exhibit. The switch in the graphic has a default configuration and the MAC table is fullypopulated. In addition, this network is operating properly. The graphic represents selected header information in a frame leaving host A. What can be concluded from this information? A. The MAC address of host A is FFFF.FFFF.FFFF. B. The router will forward the packet in this frame to the Internet. C. The switch will only forward this frame to the attached router interface. D. All devices in this LAN except host A will pass the packet to Layer 3. Answer: D 스위치는디폴트로설정되어있으며 MAC 테이블은모두채워졌다. 게다가네트워크는정상작동되고있다. 아래그림은호스트 A 를출발하는헤더정보이다. 이정보를통해알수있는것은?

91 QUESTION 101 What is an appropriate use of a default route? A. to provide routing to a local web server B. to provide routing from an ISP to a stub network C. to provide routing that will override the configured dynamic routing protocol D. to provide routing to a destination that is not specified in the routing table and which is outside the local network Answer: D 디폴트라우트 ( 정적라우팅 ) 를사용하는목적은? QUESTION 102 Refer to the exhibit. A junior network engineer has prepared the exhibited configuration file. What two statements are true of the planned configuration for interface fa0/1? (Choose two.) A. The two FastEthernet interfaces will require NAT configured on two outside serial interfaces. B. Address translation on fa0/1 is not required for DMZ Devices to access the Internet. C. The fa0/1 IP address overlaps with the space used by s0/0. D. The fa0/1 IP address is invalid for the IP subnet on which it resides. E. Internet hosts may not initiate connections to DMZ Devices through the configuration that is shown. Answer: BE 신입네트워크엔지니어는설정파일을문서화하기위해위해준비하고있다. 인터페이스 fa0/1 구성에대한준비사항으로맞는문장 2 개를고르시오?

92 QUESTION 103 Refer to the exhibit. Two routers have just been configured by a new technician. All interfaces are up. However, the routers are not sharing their routing tables. What is the problem? A. Split horizon is preventing Router2 from receiving routing information from Router1. B. Router1 is configured for RIP version 2, and Router2 is configured for RIP version 1. C. Router1 has an ACL that is blocking RIP version 2. D. There is a physical connectivity problem between Router1 and Router2. E. Router1 is using authentication and Router2 is not. Answer: B 신입엔지니어에의해두대의라우터가구성되었다. 모든인터페이스는 up 상태이다. 그러나라우터들간에라우팅테이블이교환되지않는다. 이에대한이유는무엇인가? QUESTION 104 A medium-sized company has a Class C IP address. It has two Cisco routers and one non-cisco router. All three routers are using RIP version 1. The company network is using the block of /24. The company has decided it would be a good idea to split the network into three smaller subnets and create the option of conserving addresses with VLSM. What is the best course of action if the company wants to have 40 hosts in each of the three subnets? A. Convert all the routers to EIGRP and use /27, /27, and /27 as the new subnetworks. B. Maintain the use of RIP version 1 and use /27, /27, and /27 as the new subnetworks. C. Convert all the routers to EIGRP and use /26, /26, and /26 as the new subnetworks. D. Convert all the routers to RIP version 2 and use /26, /26, and /26 as the new subnetworks. E. Convert all the routers to OSPF and use /28, /28, and /28 as the new subnetworks F. Convert all the routers to static routes and use /28, /28, and /28 as the new subnetworks. Answer: D 중소기업은 C 클래스의 IP 주소와두대의시스코라우터그리고한개는다른회사의라우터를가지고있다. 모든라우터는 RIP v1 을사용하고있다. 회사네트워크는 /24 를사용하고있다. 회사에서는네트워크를 3 개의서브넷으로나누고 VLSM 를적용하여 IP 주소를아껴쓰려고생각하고있다. 회사에서각서브넷당 40 개의호스트로구성하고자한다면가장적합한방식은무엇인가? QUESTION 105 Refer to the exhibit. Why has this switch not been elected the root bridge for VLAN1?

93 A. It has more than one interface that is connected to the root network segment. B. It is running RSTP while the elected root bridge is running 802.1d spanning tree. C. It has a higher MAC address than the elected root bridge. D. It has a higher bridge ID than the elected root bridge. Answer: D VLAN1 에서해당스위치가 root bridge 로지정되지않는이유는무엇인가? QUESTION 106 Refer to the exhibit. At the end of an RSTP election process, which access layer switch port will assume the discarding role? A. Switch3, port fa0/1 B. Switch3, port fa0/12 C. Switch4, port fa0/11 D. Switch4, port fa0/2

94 E. Switch3, port Gi0/1 F. Switch3, port Gi0/2 Answer: C RSTP 에서포트선출과정이끝난후사용되지않는역활을하는스위치포트는무엇인가? QUESTION 107 Refer to the exhibit. How many paths can the EIGRP routing process use to forward packets from HQ_Router to a neighbor router? A. two equal-cost paths B. two unequal-cost paths C. three equal-cost paths D. three unequal-cost paths E. four equal-cost paths F. four unequal-cost paths Answer: F HQ_Router 에서이웃라우터에게패킷포워드시 EIGRP 에서는몇개의경로가사용되는가? QUESTION 108 Select the action that results from executing these commands. Switch(config-if)# switchport port-security Switch(config-if)# switchport port-security mac-address sticky A. A dynamically learned MAC address is saved in the startup-configuration file. B. A dynamically learned MAC address is saved in the running-configuration file. C. A dynamically learned MAC address is saved in the VLAN database. D. Statically configured MAC addresses are saved in the startup-configuration file if frames from that address are received.

95 E. Statically configured MAC addresses are saved in the running-configuration file if frames from that address are received. Answer: B 아래명령실행결과를고르시오. Switch(config-if)# switchport port-security Switch(config-if)# switchport port-security mac-address sticky QUESTION 109 Refer to the exhibit. The following commands are executed on interface fa0/1 of 2950Switch. 2950Switch(config-if)# switchport port-security 2950Switch(config-if)# switchport port-security mac-address sticky 2950Switch(config-if)# switchport port-security maximum 1 The Ethernet frame that is shown arrives on interface fa0/1. What two functions will occur when this frame is received by 2950Switch? (Choose two.) A. The MAC address table will now have an additional entry of fa0/1 FFFF.FFFF.FFFF. B. Only host A will be allowed to transmit frames on fa0/1. C. This frame will be discarded when it is received by 2950Switch. D. All frames arriving on 2950Switch with a destination of aa.aaaa will be forwarded out fa0/1. E. Hosts B and C may forward frames out fa0/1 but frames arriving from other switches will not be forwarded out fa0/1. F. Only frames from source bb.bbbb, the first learned MAC address of 2950Switch, will be forwarded out fa0/1. Answer: BD 2950Switch 의 fa0/1 인터페이스에서아래명령이실행되었다. 2950Switch(config-if)# switchport port-security 2950Switch(config-if)# switchport port-security mac-address sticky 2950Switch(config-if)# switchport port-security maximum 1 인터페이스 fa0/1 에도달한이더넷프레임은다음과같다. 해당프레임을 2959Switch 에서수신시발생할수있는결과 2 가지는무엇인가?

96 QUESTION 110 Refer to the exhibit. Some 2950 series switches are connected to the conference area of the corporate headquarters network. The switches provide two to three jacks per conference room to host laptop connections for employees who visit the headquarters office. When large groups of employees come from other locations, the network administrator often finds that hubs have been connected to wall jacks in the conference area although the ports on the access layer switches were not intended to support multiple workstations. What action could the network administrator take to prevent access by multiple laptops through a single switch port and still leave the switch functional for its intended use? A. Configure static entries in the switch MAC address table to include the range of addresses used by visiting employees. B. Configure an ACL to allow only a single MAC address to connect to the switch at one time. C. Use the mac-address-table 1 global configuration command to limit each port to one source MAC address. D. Implement Port Security on all interfaces and use the port-security maximum 1 command to limit port access to a single MAC address. E. Implement Port Security on all interfaces and use the port-security mac-address sticky command to limit access to a single MAC address. F. Implement Port Security at global configuration mode and use the port-security maximum 1 command to allow each switch only one attached hub. Answer: D 2950 스위치들은본사회의장네트워크에연결되어있다. 스위치는회의장마다본사사무실을방문한사용자의랩탑 ( 노트북 ) 에서연결할수있도록 2 ~ 3 개의잭을제공한다. 많은사용자그룹이방문하는경우네트워크관리자는비록스위치에서포트를통해복수개의워크스테이션접속을지원하지않음에도불구하고회의장의벽면잭에연결하기위한허브를찾곤한다. 스위치의기능은처음의도한대로사용하면서하나의스위치포트를통해여러개의랩탑 ( 노트북 ) 이접근하는것을차단하기위해어떤조치를취해야하는가? QUESTION 111 Running both IPv4 and IPv6 on a router simultaneously is known as what?

97 A. 4to6 routing B. 6to4 routing C. binary routing D. dual-stack routing E. NextGen routing Answer: D 라우터에서 IPv4 와 IPv6 이동시에구동되는것을무엇이라하는가? QUESTION 112 What are three IPv6 transition mechanisms? (Choose three.) A. 6to4 tunneling B. VPN tunneling C. GRE tunneling D. ISATAP tunneling E. PPP tunneling F. Teredo tunneling Answer: ADF IPv6 으로의전환기술 (IPv4 에서 IPv6 으로전환 ) 3 가지는무엇인가? QUESTION 113 Identify the four valid IPv6 addresses. (Choose four.) A. :: B. ::192:168:0:1 C. 2000:: D. 2001:3452:4952:2837:: E. 2002:c0a8:101::42 F. 2003:dead:beef:4dad:23:46:bb:101 Answer: ABEF IPv6 주소형태로올바른것은? QUESTION 114 Which protocol should be used to establish a secure terminal connection to a remote network device? Select the best response. A. ARP B. SSH C. Telnet D. WEP E. SNMPv1 F. SNMPv2 Answer: B

98 외부네트워크장비에안전한터미널접속을하기위해사용되는프로토콜은? QUESTION 115 Refer to the exhibit. A network administrator wants Switch3 to be the root bridge. What could be done to ensure Switch3 will be the root? A. Configure the IP address on Switch3 to be higher than the IP addresses of Switch1 and Switch2. B. Configure the priority value on Switch3 to be higher than the priority values of Switch 1 and Switch2. C. Configure the BID on Switch3 to be lower than the BIDs of Switch1 and Switch2. D. Configure the MAC address on Switch3 to be higher than the Switch1 and Switch2 MAC addresses. E. Configure a loopback interface on Switch3 with an IP address lower than any IP address on Switch1 and Switch2. Answer: C 네트워크관리자는 Switch3 이 root bridge 가되기를원한다. 어떻게하면 Switch3 이 root 가되는것을보장하는가? QUESTION 116 What is the maximum data rate specified for IEEE b WLANs? A. 10 Mbps B. 11 Mbps C. 54 Mbps D. 100 Mbps Answer: B IEEE 의지정된최대데이터전송속도는무었인가? QUESTION 117 How does using the service password-encryption command on a router provide additional security? A. by encrypting all passwords passing through the router B. by encrypting passwords in the plain text configuration file C. by requiring entry of encrypted passwords for access to the device D. by configuring an MD5 encrypted key to be used by routing protocols to validate routing exchanges E. by automatically suggesting encrypted passwords for use in configuring the router Answer: B

99 QUESTION 118 Refer to the exhibit. When running OSPF, What would cause router A not to form an adjacency with router B? A. The loopback addresses are on different subnets. B. The values of the dead timers on the routers are different. C. Route summarization is enabled on both routers. D. The process identifier on router A is different than the process identifier on router B. Answer: B OSPF 가실행중일때라우터 A 가라우터 B 로인접하지않은이유는무엇인가? QUESTION 119 Refer to the exhibit. What statement is true of the configuration for this network? A. The configuration that is shown provides inadequate outside address space for translation of the number of inside addresses

100 that are supported. B. Because of the addressing on interface FastEthemet0/1, the Seria0/0 interface address will not support the NAT configuration as shown. C. The number 1 referred to in the ip nat inside source command references access-list number1. D. ExtemalRouter must be configured with static routers to networks /24. Answer: C 이네트워크의구성을올바르게설명한것은? QUESTION 120 Refer to the exhibit. The network is converged.after link-state advertisements are received from Router_A, what information will Router_E contain in its routing table for the subnets and ? A [110/13] via ,00:00:07, FastEthemet0/ [110/13] via ,00:00:16, FastEthemet0/0 B [110/1] via ,00:00:07, Serial1/ [110/3] via ,00:00:16, FastEthemet0/0 C [110/13] via ,00:00:07, Serial1/ [110/13] via ,00:00:16, Serial1/ [110/13] via ,00:00:16, FastEthemet0/0 D [110/3] via ,00:00:07, Serial1/ [110/3] via ,00:00:16, Serial1/0 Answer: A QUESTION 121 Refer to exhibit. The company uses EIGRP as the routing protocol. What path will packets take from a host on /26 network to a host on the LAN attached to router R1?

101 A. The path of the packets will be R3 to R2 to R1. B. The path of the packets will be R3 to R1 to R2. C. The path of the packets will be both R3 to R2 to R1 AND R3 to R1. D. The path of the packets will be R3 to R1. Answer: D QUESTION 122 Refer to the exhibit. Switch port FastEthemet 0/24 on ALSwitch1 will be used to create an IEEE 802.1Q-compliant trunk to another switch. Based on the output shown, What is the reason the truck does not form, even though the proper cabling has been attached?

102 A. VLANs have not been created yet. B. An IP address must be configured for the port. C. The port is currently configured for access mode. D. The correct encapsulation type has not been configured. E. The no shutdown command has not been entered for the port. Answer: C QUESTION 123 Refer to the exhibit. Which switch provides the spanning-tree designated port role for the network segment that services the printers?

103 A. Switch1 B. SWitch2 C. Switch3 D. Switch4 Answer: C 프린터서비스의스패닝트리디지그네이트포트역활을제공하는스위치는어느것인가? QUESTION 124 An administrator issues the command ping from the command line prompt on a PC. If a reply is received, what does this confirm? A. The PC has connectivity with a local host. B. The PC has connectivity with a Layer 3 device. C. The PC has a default gateway correctly configured D. The PC has connectivity up to Layer 5 of the OSI model. E. The PC has the TCP/IP protocol stack correctly imstalled. Answer: E 관리자가 PC 에서명령어 ping 을입력한다. 만일응답을받았을경우무엇을확인하는것인가? QUESTION 125 Refer to the exhibit Hosts in network are unable to reach hosts in network Based on the output from RouterA, what are two possible reasons for the failure?(choose two)

104 A. The cable that is connected to S0/0 on RouterA is faulty. B. Interface S0/0 on RouterB is administratively down. C. Interface S0/0 on RouterA is configured with an incorrect subnet mask. D. The IP address that is configured on S0/0 of RouterB is not in the correct subnet. E. Interface S0/0 on RouterA is not receiving a clock signal from the CSU/DSU. F. The encapsulation that is configured on S0/0 of RouterB does not match the encapsulation that is configured on S0/0 of RouterA. Answer: EF QUESTION 126 What is the default routing update period for RIPv2? A. 15 seconds B. 30 Seconds C. 180 Seconds D. 240 Seconds Answer: B RIPv2 에서기본적으로라우팅을업데이트하는기간 ( 주기 ) 은어느것인가? QUESTION 127 A network administrator is designing a new corporate internetwork.the corporation is concemed about downtime due to link failure and also about link costs. Which topology will provide some redundancy to increase reliability for all sites but will cost less than a fully redundant topology? A.

105 B. C. D. Answer: B QUESTION 128 Which type of attack is characterized by flood of packet that are requesting a TCP connection to a server? A. denial of service B. brute force C. reconnaissance D. Trojan horse Answer: A 서버에 TCP 연결을요청하는 flood 패킷의특징을같는공격유형은무엇인가? QUESTION 129 Refer to the exhibit. For what two reasons has the router loaded its IOS image from the location that is shown?(choose two)

106 A. Router1 has specific boot system commands that instruct it to load IOS from TFTP server. B. Router1 is acting as a TFTP server for other routers. C. Router1 cannot locate a valid IOS image in flash memory. D. Router1 defaulted to ROMMON mode and loaded the IOS image from a TFTP server. E. Cisco routers will first attempt to load a image from TFTP for management purposes. Answer: AC 라우터는어떤두가지이유때문에표시되는위치에서라우터의 IOS 이미지가로드되는것인가? QUESTION 130 What is the purpose using the traceroute command? A. to map all the devices on a network B. to display the current TCP/IP configuration values C. to see how a device MAC address is mapped to its IP address D. to see the path a packet will take when traveling to a specified destination E. to display the MTU values for each router in a specified network path from source to a destination. Answer: D 다음중 traceroute 명령을사용하는목적은무엇인가? QUESTION 131 Refer to the exhibit.given the output from the show ip eigrp topology command, which router is the feasible successor? A. B.

107 C. D. Answer: B 보기는 ip eigrp 토폴로지명령어의출력이다. 라우터의 feasible successor( 후속경로 ) 는어는것인가? QUESTION 132 The output of the show frame-relay pvc command shows"pvc STATUS=INACTIVE". What does this mean? A. The PVC is configured correctly and is operating normally,but no data packets have been detected for more than five minutes. B. The PVC is configured correctly, is operating normally,and is no longer actively seeking the address the remote route. C. The PVC is configured correctly, is operating normally,and is waiting for interesting to trigger a call to the remote router. D. The PVC is configured correctly on the local switch, but there is a problem on the remote end of the PVC. E. The PVC is not configured on the switch. Answer: D 프레임릴레이 PVC 명령의출력은 "PVC 상태 = 비활성 " 을보여준다.. 의미는무엇인가?? QUESTION 133 Refer to the exhibit.which command will created a default route on Router B to reach all networks beyond routera?

108 A. ip route B. ip route C. ip route s0/0/0 D. ip route s0/0/0 E. ip route Answer: A 라우터 A 의모든네트워크에도달하기위하여라우터 B 에서기본경로를생성하는명령어는무엇인가? QUESTION 134 Which of the following IP addresses can be assigned to host devices?(choose two) A /27 B /23 C D E /28 F /13 Answer: BF 다음의 IP 주소중에서호스트장치에할당할수있는것은무엇인가?(2 개선택 ) QUESTION 135 What is a valid reason for a switch to deny port access to new devices when port security is enabled? A. The denied MAC addresses have already been learned or configured on another secure interface in the same VLAN. B. The denied MAC address are statically cofigured on the port. C. The minimum MAC threshold has been reached. D. The absolute aging times for the denied MAC addresses have expired. Answer: B 스위치에포트보안이활성화되어있을때새로운장치가포트에접근하는것을거부하기위한타당한이유는무엇인가?

109 Exam C QUESTION 1 Which statement is correct about the intemetwork shown in the diagram? A. Switch 2 is the root bridge. B. Spanning Tree is not running. C. Host D and Server 1 are in the same network. D. No conlisions can occur in traffic between Host B and Host C. E. If Fa0/0 is down on Router1, Host A cannot access Server1. F. If Fa0/1 is down on Switch3, Host C cannot access Server2. Answer: E 다음 internetwork 그림에대해정확하게설명한것은무엇인가? QUESTION 2 Which statement is correct regarding the operation of DHCP? A. A DHCP client uses a ping to detect address conficts. B. A DHCP server uses a gratuitous ARP to detect DHCP clients. C. A DHCP client uses a gratuitous ARP to detect a DHCP server. D. If an address conflict is detected, the address is removed from the pool and an administrator must resolve the conflict. E. If an address conflict is detected, the address is removed from the pool for an amount of time configurable by the administrator. F. If an address conflict is detected, the address is removed from the pool and will not be reused until the server is rebooted. Answer: E 다음중 DHCP 의운영에대하여정확한설명은무엇인가? QUESTION 3 Refer to the digram.what is the largest configuration file that can be stored on this router?

110 A. 191K bytes B K bytes C K bytes D K bytes Answer: A 라우터에저장할수있는최대의구성파일이무엇입니까? QUESTION 4 Users have been complaining that their Frame Relay connection to the corporate site is very slow. The network administrator suspects that the link is overloaded. Based on the partial output of the Router# show frame relay pvc command shown in the graphic, which output value indicates to the loacal router that traffic sent to the corporate site is experiencing congestion? A. DLCI=100 B. last time PVC status changed 00:25:40 C. in BECN packets 192

111 D. in FECN packets 147 E. in DF packets 0 Answer: C 사용자들이회사사이트로프레임릴레이접속속도가느리다고불평하고있다. 네트워크관리자는링크과부하를의심하고있다. 화면에서처럼 "Rourer# show frame relay pvc command" 명령어의부분결과를토대로볼때, 로컬라우터에게회사사이트로트래픽이혼잡하다는것을알려주는결과값은무엇인가? QUESTION 5 A network interface port has collision detection and carrier sensing enabled on a shared twisted pair network. From this statement, what is known about the network interface port? A. This is a 10 Mb/s switch port. B. This is a 100 Mb/s switch port. C. This is an Ethernet port operating at half duplex. D. This is an Ethernet port operating at full duplex. E. This is a port on a network interface card in a PC. Answer: C shared twisted pair network 상의네트워크인터페이스포트는충돌감시와신호감지가활성화되어있다. 네트워크인터페이스포트에대해알수있는것은무엇인가? QUESTION 6 A network administrator needs to allow only one Telnet connection to a router. For anyone viewing the configuration and issuing the show run command, the password for Telnet access should be encrypted. Which set of commands will accomplish this task? A. service password-encryption access-list1 permit login password cisco access-class 1 B. enable password secret line vty0 login password cisco C. service password-encryption line vty0 login password cisco D. service password-encryption line vty0 4 login password cisco Answer: C 네트워크관리자는라우터에오직하나의텔넷접속을허용해야합니다. 아무나구성내용을보고 show run 명령실행문제를위해, 텔넷액세스를위한암호는암호화되어야합니다. 이작업을수행하기위해어떤명령어를설정해야하는가? QUESTION 7 Refer to the exhibit.what is the meaning of the output MTU 1500 bytes?

112 A. The maximum number of bytes that can traverse this interface per second is B. The minimum segment size that can traverse this interface is 1500 bytes. C. The maximum segment size that can traverse this interface is 1500 bytes. D. The minimum packet size that can traverse this interface is 1500 bytes. E. The maximum packet size that can traverse this interface is 1500 bytes. F. The maximum frame size that can traverse this interface is 1500 bytes. Answer: E MTU 1500 bytes 의미은무엇인가? QUESTION 8 Refer to the exhibit. A network administrator configures a new router and enters the copy starup-config running-config command on the router. The network administrator powers down the router and sets it up at a remote location. When the router starts, it enters the system configuration dialog as shown. What is the cause of the problem? A. The network administrator failed to save the configuration. B. The configuration register is set to 0*2100. C. The boot system flash command is missing from the configuration. D. The configuration register is set to 0*2102. E. The router is configured with the boot system startup command. Answer: A 네트워크관리자는새로운라우터를구성하고 copy starup-config running-config 명령어를입력했다. 네트워크관리자는원격으로설정을하고라우터를전원을껐다. 라우터가시작되면, 시스템구성대화상자로들어간다. 문제의원인은무엇인가? QUESTION 9 Refer to the exhibit. An organization connects two locations, supporting two VLANs, through two switches as shown. Inter-VLANs communication is not required. The network is working properly and there is full connectivity. The organization needs to add additional VLANs, so it has been decided to implement VTP. Both switches are configured as VTP servers in the same VTP domain.

113 VLANs added to Switch1 are not learned by Switch2. Based on this information and the partial configurations in the exhibit, what is the problem? A. Switch2 should be configured as a VTP client. B. VTP is Cisco proprietary and requires a different trunking encapsulation. C. A router is required to route VTP advertisements between the switches. D. STP has blocked one of the links between the switches,limiting connectivity. E. The links between the switches are access links. Answer: E QUESTION 10 The administrator ais unable to establish connectivity between two Cisco routers. Upon reviewing the command output of both the problem? A. Authentication needs to be changed to PAP for both routers. B. Serial ip address of routers are not on the same subnet. C. Username/password is incorrectly configured. D. Router name are incorrectly configured.

114 Answer: C 관리자가두시스코라우터간의연결을설정할수없었다. 두라우터의명령어 output 을검토한결과문제는무엇인가? QUESTION 11 Refer to the exhibit. The network manager is evaluating the efficiency of the current network design. RIPv2 is enabled on all Layer 3 devices in the network. What network devices participate in passing traffic from the PC at to File Server at in the order that they will forward traffic from source to destination? A. Switch1, Switch2 B. Switch1, Switch2, Router2, Switch2 C. Switch 1, Router1, Switch1, Switch2 D. Switch1, Router1, Router2, Switch2 Answer: D QUESTION 12 Acknowledgements, sequencing, and flow control are characteristics of which OSI layer? A. Layer 2 B. Layer 3 C. Layer 4 D. Layer 5 E. Layer 6 F. Layer 7 Answer: C Acknowledgements, sequencing, and flow control 의특징을가지는 OSI 레이어는? QUESTION 13

115 Refer to the exhibit. Router A has intefaces with addresses and Router B, which is connected to rourer address and Which sequence of commands will configure RIPv2 on router B? A. B. C. D. Answer: A QUESTION 14 Refer to the exhibit. S0/0 on R1 is configured as a multipoint interface to communicate with R2 and R3 in this hub-and-spoke. While testing this configuration, a technician notes that pings are successful from hosts on the /24 network to host /25 networks. However, pings between hosts on the /25 and /25 networks are not successed problem?

116 A. The ip subnet-zero command has been issued on the R1 router. B. The RIP v2 dynamic routing protocol cannot be used across a Frame Relay network. C. Split horizon is preventing R2 from learning about the R3 networks and R3 from learning about the R2 networks. D. the /25 and /25 networks are overlapping networks that can be seen by R1, but not between R2 E. The /29 network used on the Frame Relay links is creating a discontiguous network between the R2 and R3 subnetworks Answer: C QUESTION 15 A network administrator is verifying the configuration of a newly installed host by establishing an FTP connection to a remote server. What is the highest layer of the protocol stack that the network administrator is using for this operation? A. application B. presentation C. session D. transport E. internet F. data link Answer: A QUESTION 16 Refer to the topology and router output shown in the exhibit. A technician is troubleshooting host connectivity issues on the switches. The hosts in VLANs 10 and 15 on Sw11 are unable to communicate with hosts in the same VLANs on Sw12. Hosts in the Admin VLAN are able to communicate. The port-to-vlan assignments are identical on the two switches. What could be the problem?

117 A. The Fa0/1 port is not operational on one of the switches. B. The link connecting the switches has not been configured as a trunk. C. At least one port needs to be configured in VLAN 1 for VLANs 10 and 15 to be able to communicate. D. Port FastEthernet 0/1 needs to be configured as an access link on both switches. E. A router is required for hosts on SW11 in VLANs 10 and 15 to communicate with hosts in the same VLAN on Sw12. Answer: B QUESTION 17 You have finished physically installing an access point on the ceiling at your office. At a minimum, which parameter must be allow a wireless client to operate on it? A. AES B. PSK C. SSID D. TKIP E. WEP Answer: C QUESTION 18 Refer to the exhibit. A network administrator needs to add a new VLAN, named VLAN3, to the network shown. Unfortunately, there is not another FastEthernet interface on R1 to connect to the new VLAN3. Which approach is the most cost effective solution for this problem?

118 A. Purchase a new FastEthernet module and install it on R1. B. Replace R1 with a new router that has at least three FastEthernet interfaces. C. Configure a second switch to support VLAN3 with a VLAN trunk between SW1 and the new switch. D. Configure a single VLAN trunk between R1 and SW1 and configure a subinterface on the R1 interface for each VLAN. E. Connect another router to a serial interface of R1. Use a FastEthernet interface on the new router for VLAN3. Answer: D QUESTION 19 Refer to the exhibit. When running EIGRP, what is required for RouterA to exchange routing updates with RouterC? A. As numbers must be changed to match on all the routers B. Loopback interfaces must be configured so a DR is elected C. The no auto-summary command is needed on Router A and Router C D. Router B needs to have two network statements, one for each connected network Answer: A

119 QUESTION 20 Refer to the exhibit. The two exhibited devices are the only Cisco devices on the network. The serial network between the two devices has a mask of Given the output that is shown, what three statements are true of these devices? (Choose three) A. The Manchester serial address is B. The Manchester serial address is C. The London router is a Cisco D. The Manchester router is a Cisco E. The CDP information was received on port Serial0/0 of the Manchester router. F. The CDP information was sent by port Serial0/0 of the London router. Answer: ACE QUESTION 21 How is an EUI-64 format interface ID created from a 48-bit MAC address? A. by appending 0xFF to the MAC address B. by prefixing the MAC address with 0xFFEE C. by prefixing the MAC address with 0xFF and appending 0xFF to it D. by inserting 0xFFFE between the upper three bytes and the lower three bytes of the MAC address E. by prefixing the MAC address with 0xF and inserting 0xFafter each of its first three bytes Answer: D QUESTION 22 Refer to the exhibit. After a RIP route is marked invalid on Router_1, how much time will elapse before that route is removed from the routing table?

120 A. 30 seconds B. 60 seconds C. 90 seconds D. 180 seconds E. 240 seconds Answer: B QUESTION 23 Refer to the exhibit. A network associate has configured the internetwork that is shown in the exhibit, but has failed to configure routing properly. Which configuration will allow the hosts on the Branch LAN to access resources on the HQ LAN with the least impact on router processing and WAN bandwidth? A. HQ(config)#ip route Branch(config)#ip route B. HQ(config)#router rip HQ(config-router)#network HQ(config-router)#network Branch(config)#router rip Branch(config-router)#network Branch(config-router)#network C. HQ(config)#router eigrp 56 HQ(config-router)# network HQ(config-router)# network Branch(config)# router eigrp 56 Branch(config-router)# network Branch(config-router)# network D. HQ(config)# router ospf 1 HQ(config-router)# network area 0 HQ(config-router)# network area 0 Branch(config)# router ospf1 Branch(config-router)# network area 0 Answer: A

121 QUESTION 24 Which additional configuration step is necessary in order to connect to an access point that has SSID broadcasting disabled? A. Set the SSID value in the client software to public. B. Configure open authentication on the AP and the client. C. Set the SSID value on the client to the SSID configured on the AP. D. Configure MAC address filtering to permit the client to connect to the AP. Answer: C QUESTION 25 What is one reason that WPA encryption is preferred over WEP? A. AWPA key is longer and requires more special characters than the WEP key. B. The access point and the client are manually configured with different WPA key values. C. WPA key values remain the same until the client configuration is changed. D. The values of WPA keys can change dynamically while the system is used. Answer: D WPA 암호화가 WEP 보다선호되는한가지이유는무엇인가? QUESTION 26 A network administrator is troubleshooting an EIGRP problem on a router and needs to confirm the IP addresses of the devices with which the router has established adjacency. The retransmit interval and the queue counts for the adjacent routers also need to be checked.what command will display the required information? A. Router# show ip eigrp adjacency B. Router# show ip eigrp topology C. Router# show ip eigrp interfaces D. Router# show ip eigrp neighbors Answer: D 네트워크관리자는라우터에서의 EIGRP 문제를해결하고, 라우터가형성해온인접관계를맺고있는장치들의 IP 주소를확인하는것이필요하다. 재전송구간과인접라우터들의대기행렬수또한확인돼야한다. 요청하는정보를보여줄수있는명령어는어떤것인가? 참고그리고라우팅에의한정보교환순서를알아보면, 우선라우터 A 가새로운이웃 B 에게 Hello 패킷을받으면, 라우터 A 는유니캐스트업데이트방식으로업데이트패킷내에자신의토폴로지테이블을넣어서라우터 B 에게보낸다. 다음으로라우터 B 는업데이트패킷을받으면자신의토폴로지테이블을 A 에게보낸다. 라우터사이의 Hello 패킷전송간격은 5 초가기본이다. QUESTION 27 All WAN links inside the ABC University network use PPP with CHAP for authentication security. Which command will display the

122 CHAP authentication process as it occurs between two routers in the network? A. show CHAP authentication B. show interface serial0 C. debug PPP authentication D. debug CHAP authentication E. show ppp authentication chap Answer: C ACB 대학교의모든 WAN 링크는인증보안을위해 CHAP 을사용하는 PPP 를쓴다. 두라우터간 CHAP 의인증과정을확인하려면어떤명령어를써야하는가? QUESTION 28 Refer to the exhibit. A network technician is asked to design a small network with redundancy. The exhibit represents this design, with all hosts configured in the same VLAN. What conclusions can be made about this design? A. This design will function as intended. B. Spanning-tree will need to be used. C. The router will not accept the addressing scheme. D. The connection between switches should be a trunk. E. The router interfaces must be encapsulated with the 802.1Q protocol. Answer: C QUESTION 29 Refer to the exhibit. How should the FastEthernet0/1 ports on the 2950 model switches that are shown in the exhibit be configured to allow connectivity between all deviecs?

123 A. The ports only need to be connected by a crossover cable. B. SwitchX(config)#interface fastethernet 0/1 SwitchX(config-if)#switchport mode trunk C. SwitchX(config)# interface fastethernet 0/1 SwitchX(config-if)#switchport mode access SwitchX(config-if)#switchport access vlan 1 D. SwitchX(config)#interface fastethernet 0/1 SwitchX(config-if)#switchport mode trunk SwitchX(config-if)#switchport trunk vlan 1 SwitchX(config-if)#switchport trunk vlan 10 SwitchX(config-if)#switchport trunk vlan 20 Answer: B QUESTION 30 IP addresses and routing for the network are configured as shown in the exhibit. The network administrator issues the show ip eigrp neighbors command from Router1 and receives the output shown below the topology. Which statement is true?

124 A. It is normal for Router1 to show one active neighbor at a time to prevent routing loops. B. Routing is not completely configured on Router3. C. The IP addresses are not configured properly on the Router1 and Router3 interfaces. D. The no auto-summary command configured on the routers prevents Router1 and Router2 from forming a neighbor relationship. Answer: B QUESTION 31 Refer to the exhibit. After SwitchB was added to the network, VLAN connectivity problems started to occur. What caused this problem? A. Both switches are in server mode in the same domain. B. The revision number of SwitchB was higher than the revision number of SwitchA. C. SwitchA was not rebooted prior to adding SwitchB to the network. D. V2-mode is not enabled. E. VTP pruning is not activated, so the new paths in the network have not been recalculated. Answer: B

125 SwitchB 가네트워크에추가된후, VLAN 연결문제가발생하기시작했다. 문제의원인은무엇인가? QUESTION 32 Refer to the exhibit. The output that is shown is generated at a switch. Which three of these statements are true? (Choose three.) A. All ports will be in a state of discarding, learning, or forwarding. B. Thirty VLANs have been configured on this switch. C. The bridge priority is lower than the default value for spanning tree. D. All interfaces that are shown are on shared media. E. All designated ports are in a forwarding state. F. This switch must be the root bridge for all VLANs on this switch. Answer: CEF 스위치의출력을볼때, 다음중설명이올바른세가지는어느것인가? QUESTION 33 Refer to the exhibit. Two buildings on the San Jose campus of a small company must be connected to use Ethernet with a bandwidth of at least 100 Mbps. The company is concerned about possible problems from voltage potential differences between the two buildings. Which media type should be used for the connection? A. UTP cable B. STP cable C. coaxial cable D. fiber optic cable

126 Answer: D 작은회사의산호세캠퍼스에 2 개의건물은적어도 100Mbps 의대역폭의이더넷을사용하여연결되어있어야한다. 이회사는두건물사이의전압을잠재적인차이점에서가능한문제에대해우려하고있다. 어떤미디어유형은연결에사용해야하는가? QUESTION 34 How should a router that is being used in a Frame Relay network be configured to avoid split horizon issues from preventing routing updates? A. Configure a separate sub-interface for each PVC with a unique DLCI and subnet assigned to the sub-interface. B. Configure each Frame Relay circuit as a point-to-point line to support multicast and broadcast traffic. C. Configure many sub-interfaces on the same subnet. D. Configure a single sub-interface to establish multiple PVC connections to multiple remote router interfaces. Answer: A 스플리트호라이즌 (split horizon) 문제를방지하려면프레임릴레이에사용되는라우터설정을어떻게해야하는가? QUESTION 35 A TCP/IP Transfer is diagrammed in the exhibit. A window size of three has been negotiated for this transfer. Which message will be returned from the receiver to the sender as part of this TCP/IP transfer? A. Send ACK 1-3 B. Send ACK 3 C. Send ACK 4 D. Send ACK 4-6 E. Send ACK 6 F. Send ACK 7 Answer: C 3 개의윈도우사이즈가전송되었다. 송신측은수신측에서어떤 TCP/IP 메세지를전송하는가?

127 QUESTION 36 Refer to the exhibit. The network administrator has discovered that the VLAN configuration of SwitchC is not synchronized with the rest of the switched network. Why is SwitchC not receiving VTP updates? Exhibit:

128 A. SwitchB is not relaying VTP advertisements to SwitchC. B. SwitchC has fewer existing VLANs than does SwitchA. C. SwitchA supports a greater number of VLANs than does SwitchC. D. SwitchC has revision number higher than that being advertised E. SwitchC should be operating in VTP server mode to recevie VTP updates. F. SwitchB should be operating in VTP server or client mode to relay VTP updates. Answer: D 네트워크관리자는 Switch C 의 VLAN 구성이스위치네트워크의나머지부분과동기화되지않은것을발견했습니다. Switch C 는왜 VTP 업데이트를받지못하는가? QUESTION 37 Which subnet mask would be appropriate for a network address range to be subnetted for up to eight LANs, with each LAN containing 5 to 26 hosts? A B C D E Answer: D QUESTION 38 Which of the following services use UDP? (Choose three.) A. DNS B. Telnet C. SMTP D. SNMP E. HTTP F. TFTP Answer: ADF 다음중 UDP 를사용하는서비스는무엇인가? QUESTION 39 Which two statements describe the Cisco implementation of VLANs? (Choose two.) A. VLAN 1 is the default Ethernet VLAN. B. CDP advertisements are only sent on VLAN C. By default, the management VLAN is VLAN D. By default, the switch IP address is in VLAN E. VLANs 1002 through 1005 are automatically created and cannot be deleted. Answer: AE

129 QUESTION 40 Refer to the exhibit. Both routers Branch and HQ are configured for EIGRP. Unfortunately, users on the Branch networks are unable to reach users on the HQ networks. Which command could you enter on Branch to correct this problem? A. Branch(config-router)# version 2 B. Branch(config-router)# no auto-summary C. Branch(config-router)# redistribute eigrp 44 D. Branch(config-router)# EIGRP log-neighbor-changes E. Branch(config-router)# default-information originate Answer: B 두라우터 Branch( 지점 ) 와 HQ( 본사 ) 가 EIGRP 에대해구성되어있다. 불행히도 Branch( 지점 ) 네트워크의사용자가 HQ( 본사 ) 네트워크의사용자에게도달할수없다. 문제를해결하기위해 Branch( 지점 ) 에서어떤명령어를입력해야하나? QUESTION 41 Refer to the exhibit. Which of these statements correctly describes the state of the switchonce the boot process has been completed?

130 A. As FastEthernet0/12 will be the last to come up, it will be blocked by STP. B. Remote access management of this switch will not be possible without configuration change. C. More VLANs will need to be created for this switch. D. The switch will need a different IOS code in order to support VLANs and STP. Answer: C 부트프로세스가완료되었을때스위치상태를올바르게설명한것은? QUESTION 42 Refer to the exhibit. In this VLSM addressing scheme, what summary address would be sent from router A? A /16 B /20 C /24 D /16 E /17 F /16 Answer: A VLSM 주소체계에서 A 라우터에서보낸요약주소는무엇인가? QUESTION 43 Refer to the exhibit. Given this output for SwitchC, what should the network administrator's next action be?

131 A. Check the trunk encapsulation mode for SwitchC's fa0/1 port. B. Check the duplex mode for SwitchC's fa0/1 port. C. Check the duplex mode for SwitchA's fa0/2 port. D. Check the trunk encapsulation mode for SwitchA's fa0/2 port. Answer: C SwitchC 이출력을볼때네트워크관리자의다음행동은무엇인가? QUESTION 44 How many subnets can be gained by subnetting /23 into a /27 mask, and how many usable host addresses will there be per subnet? A. 8 subnets, 31 hosts B. 8 subnets, 32 hosts C. 16 subnets, 30 hosts D. 16 subnets, 32 hosts E. A Class B address can't be subnetted into the fourth octet. Answer: C Subnet: - New Subnet Mask - Origianl Subnet Mask = 4 2^4 = subnets Hosts: New Subnet Mask = 5 (n=32-new Subnet Mask) 2^5-2 = 30(2^n-2 usable host ) - 30 hosts per subnet

132 QUESTION 45 Refer to the exhibit. Which of these statements correctly describes the state of the switch once the boot process has been completed? A. Only the default VLANs are configured on SwitchA B. SwitchA does not have a VTP domain name configured. C. VTP pruning needs to be enabled on SwitchA D. SwitchC needs to have the VTP domain name configured. E. SwitchB is in transparent mode. Answer: B 부트프로세스가완료되었을때스위치상태를올바르게설명한것은? QUESTION 46 Refer to the exhibit.a router boots to the prompt shown in the exhibit. What does this signify, and how should the network administrator respond? A. This prompt signifies that the configuration file was not found in NVRAM. The netwok administrator should follow the prompts to enter a basic configuration. B. This prompt signifies that the configuration file was not found in flash memory. The netwok administrator should use TFTP to transfer a configuration file to the router. C. This prompt signifies that the IOS image in flash memory is invalid or corrupt. The netwok administrator should use TFTP to transfer an IOS image to the router. D. This prompt signifies that the router could not authenticate the user. The netwok administrator should modify the IOS image and reboot the router. Answer: C

133 라우터부트시프롬프트는보기와같다. 네트워크관리지는이것이무엇을뜻하는것인지와이것에대해어떻게대처해야하는가? QUESTION 47 Refer to the exhibit. A network administrator attempts to ping Host2 from Host1 and receives the results that are shown, What is a possible problem? A. The link between Host1 and Switch1 is down. B. TCP/IP is not functioning on Host1. C. The link between Router1 and Router2 is down. D. The default gateway on Host1 is incorrect. E. Interface Fa0/0 on Router1 is shutdown. F. The link between Switch1 and Router1 is down. Answer: C 네트워크관리자가 host1 에서 host2 에 ping 을시도한것의결과보여준다. 가능한문제는무엇인가? QUESTION 48 Refer to the exhibit. The Bigtime router is unable to authenticate to the Littletime router. What is the case of the problem? A. The username are incorrectly configured on the two routers. B. The passwords do not match on the two routers. C. CHAP authentication cannot be used on a serial interface. D. The routers cannot be connected from interface S0/0 to interface S0/0. E. With CHAP authentiation, one router must authenticate to another router. The routers cannot be configured to authenticate to each other.

134 Answer: B Bigtime router 는 Littletime router 에인증할수없다. 문제의원인은무엇인가? QUESTION 49 S0/0 on R1 is configured as a multipoint interface to communicate with R2 and R3 in this hub-and-spoke Fram Relay topology shown in the exhibit. Originally, static routes were configured between these routers to successfully route traffic between the attached networks. What will need to be done in order to use RIP v2 in plase of the staric routers? A. Configure the on ip subnet-zero command on R1, R2, and R3 B. Dynamic routing protocols such as RIP v2 cannot be used accross Fram Relay networks. C. Configure the s0/0 interface on R1 as two subinterfaces and configure point-to-point links to R2 and R3. D. Configure the /25 and /25 subnetworks so that at least two bits are borrowed from the last octet. E. Change the network address configurations to eliminate the discontiguous /25 and /25 subnetworks. Answer: C QUESTION 50 Refer to the exhibit. A router interface is being configured for Frame Relay. However, as the exhibit shows,the router will not accept the command to configure the LMI type. What is the problem? A. The interface does not support Frame Relay connections. B. The interface does not have an IP address assigned to it yet. C. The interface requires that the no shutdown command be configured first. D. The interface requires that the encapsulation frame-relay command be configured first. Answer: D

135 라우터인터페이스는프레임릴레이로구성되고있다. 단, 보기에서보여주는라우터는 LMI 타입을구성하는명령을수락하지않는다. 무엇이문제인가? QUESTION 51 Refer to the exhibit. The technician wants to upload a new IOS in the router while keeping the existing IOS. What is the maximum size of an IOS file that could be loaded if the original IOS is also kept in flash? A. 3 MB B. 4 MB C. 5 MB D. 7 MB E. 8 MB Answer: B 기술자는라우터에기존의 IOS 는유지하면서새로운 IOS 를업그레이드를원한다. 기존 IOS 가플래쉬메모리에있다면로드가능한 IOS 파일의최대크기는무엇인가? QUESTION 52 When upgrading the IOS image, the network administrator receives the exhibited error message. What could be the cause of this error? A. The new IOS image is too large for the router flash memory. B. The TFTP server is unreachable from the router. C. The new IOS image is not correct for this router platform. D. The IOS image on the TFTP server is corrupt. E. There is not enough disk space on the TFTP server for the IOS image. Answer: B IOS 이미지를업드레이드할때네트워크관리자는보기와같은오류메제시를받았다. 오류의원인은무엇인가? QUESTION 53

136 Refer to the exhibit. Why is flash memory erased prior to upgrading the IOS image from the TFTP server? A. The router cannot vertify that the Cisco IOS image currently in flash is valid. B. Flash memory on Cisco routers can contain only a single IOS image. C. Easing current flash content is requested during the copy dialog. D. In order for the router to use the new image as the default. it must be the only IOS image in flash. Answer: C TFTP 서버로부터 IOS 이미지를업그래이드하기전에플래쉬메모리을지워야하는이유는? QUESTION 54 Refer to the exhibit. What is the meaning of the term dynamic as displayed in the output of the show frame-relay map command shown? A. The Serial0/0 interface is passing traffic. B. The DLCI 100 was dynamically allocated by the router. C. The Serial0/0 interface acquired the IP address of from a DHCP server. D. The DLCI 100 will be dynamically changed as required to adapt to changes in the Frame Relay cloud. E. The mapping between DLCI 100 and the end station IP address was learned through Inverse ARP. Answer: E show fram-relay map 명령어로출력내용을볼때 dynamic 의의미는무엇인가? QUESTION 55 Refer to the exhibit. Given the output for this command. if the router ID has not been manually set, what router ID will OSPF use for this ROUTER?

137 A B C D Answer: C 출력내용을볼때라우터 ID 가수동으로되어있지않는경우에 OSPF 를사용하는라우터의라우터 ID 는무엇인가? QUESTION 56 Refer to the exhibit. The show vtp status command is executed at a switch that is generation the exhibited output. Which statement is true for this switch? A. The switch forwards is VLAN database to other switches in the ICND VTP domain. B. The configuration revision number increments each time the VLAN databases is updated. C. The switch forwards VTP updates that are sent by other switches in the ICND domain. D. The VLAN database is updated when VTP information is received from other switchs. Answer: C 다음출력은스위치에서 show vtp status 명령어를실행한것이다. 이스위치에대한올바른설명은무엇인가? QUESTION 57 What can be done to secure the virtual terminal interfaces on a router? (Choose two.) A. Administratively shut down the interface. B. Physically secure the interface. C. Create an access list and apply it to the virtual terminal interfaces with the access-group command. D. Configure a virtual terminal password and login process. E. Enter an access list and apply it to the virtual terminal interfaces using the access-class command. Answer: DE

138 라우터에서가상터미널인터페이스의보안을위해할수있는일은? QUESTION 58 Refer to the exhibit. All switch ports are assigned to the correct VLANs, but none of the hosts connected to SwitchA can communicate with hosts in the same VLAN connected to SwitchB. Based on the output shown, what is the most likely problem? A. The access link needs to be configured in multiple VLANs. B. The link between the switches is configured in the wrong VLAN. C. The link between the switches needs to be configured as a trunk. D. VTP is not configured to carry VLAN information between the switches. E. Switch IP addresses must be configured in order for traffic to be forwarded between the switches. Answer: C QUESTION 59 A receiving host computes the checksum on a frame and determines that the frame is damaged. The frame is then discarded. At which OSI layer did this happen? A. session B. transport C. network D. data link E. physical Answer: D

139 QUESTION 60 Refer to the exhibit. C-router is to be used as a "router-on-a-stick" to route between the VLANs. All the interfaces have been properly configured and IP routing is operational. The hosts in the VLANs have been configured with the appropriate default gateway. What can be said about this configuration? A. These commands need to be added to the configuation: C-router(config)# router rip C-router(config-router)# network B. These commands need to be added to the configuation: C-router(config)# router eigrp 123 C-router(config-router)# network C. These commands need to be added to the configuation: C-router(config)# router ospf 1 C-router(config-router)# network area 0 D. No further routing configuration is required. Answer: D QUESTION 61 Two routers named Atlanta and Brevard are connected by their serial interfaces as shown in the exhibit, but there is no data connectivity between them. The Atlanta router is known to have a correct configuration. Given the partial configurations shown in the exhibit, what is the problem on the Brevard router that is causing the lack of connectivity? A. A loopback is not set.

140 B. The IP address is incorrect. C. The subnet mask is incorrect. D. The serial line encapsulations are incompatible. E. The maximum transmission unit (MTU) size is too large. F. The bandwidth setting is incompatible with the connected interface. Answer: B QUESTION 62 Refer to the topology and router configuration shown in the graphic. A host on the LAN is accessing an FTP server across the Internet. Which of the following addresses could appear as a source address for the packets forwarded by the router to the destination server? A B C D E F Answer: D 그림에나타난토폴로지와라우터설정을살펴보자. LAN 에서의어떤호스트가인터넷을통해 FTP 서버로접근하고있다. 다음중라우터가목적지서버로보내는패킷의소스주소가될수있는것은무엇인가 QUESTION 63 What is the purpose of Spanning Tree Protocol? A. to prevent routing loops B. to create a default route C. to provide multiple gateways for hosts D. to maintain a loop-free Layer 2 network topolgy Answer: D

141 STP( Spanning Tree Protocol) 의목적은무엇인가? QUESTION 64 Refer to the exhibit. What two results would occur if the hub were to be replaced with a switch that is configured with one Ethernet VLAN? (Choose two.) A. The number of collision domains would remain the same. B. The number of collision domains would decrease. C. The number of collision domains would increase. D. The number of broadcast domains would remain the same. E. The number of broadcast domains would decrease. F. The number of broadcast domains would increase. Answer: CD 허브를하나의이더넷 VLAN 로구성된스위치로대체하려는경우발생할수있는 2 가지경우는무엇인가? QUESTION 65 The PS4 network administrator want to install some new wireless equipments into PS4 LAN, which wireless LAN design ensures that the mobile wireless client will not lose connectivity when moving from one access point to another? A. The administrator can configure all access points to use the same channel B. Overlapping the wireless cell coverage by at least 10% C. Using adapters and access points manufactured by the same company D. Utilizing MAC address filtering to allow the client MAC address to authenticate with the surrounding APs Answer: B QUESTION 66 Which two passwords must be supplied in order to connect by Telnet to a properly secured Cisco switch and make changes to the device configuration? (Choose two.) A. Console password B. Vty password C. Aux password D. Tty password E. Enable secret password F. Username password

142 Answer: BE QUESTION 67 Which of the following data network would you implement if you wanted a wireless network that had a relatively high data rate, but was limited to very short distances? A. Broadband personal comm. Service (PCS) B. Broadband circuit C. Infrared D. Spread spectrum Answer: C QUESTION 68 What can a network administrator utilize by using PPP Layer 2 encapsulation? (Choose three.) A. VLAN support B. Compression C. Authentication D. Multilink support E. Quality of service Answer: BCE QUESTION 69 According to capabilities of WPA security, which encryption type does WPA2 use? A. AES-CCMP B. PSK C. TKIP/MIC D. PPK via IV Answer: A WPA 보안의기능에따라 WPA2 를사용하는암호화유형은무엇인가? QUESTION 70 Which three of the following are reasons for assigning ports to VLANs on a switch? (Choose three.) A. to permit more devices to connect to the network B. to isc C. to logically group hosts on the basis of function D. to increase network security Answer: BCD

143 스위치에서 VLAN 에포트를할당하는이유는무엇인가?( 선택 3) QUESTION 71 Three access points have been installed and configured to cover a small office. What term defines the wireless topology? A. BSS B. IBSS C. ESS D. SSID Answer: C 3 개의 AP( 액세스포인트 ) 가설치되었고작은사무실을커버하도록구성되었다. 무선토폴로지용어의정의는무엇인가? QUESTION 72 When are packets processed by an inbound access list? A. Before they are routed to an outbound interface B. After they are routed to an outbound interface C. Before and after they are routed to an outbound interface D. After they are routed to an outbound interface but before being placed in the outbound queue Answer: A 언제인바운드 ACL(access list) 에의해패킷이처리되는가? QUESTION 73 The corporate head office of certways has a teleconferencing system that uses VOIP (voice over IP) technology. This system uses UDP as the transport for the data transmissions. If these UDP datagrams arrive at their destination out of sequence, what will happen? A. UDP will send an ICMP Information Request to the source host. B. UDP will pass the information in the datagrams up to the next OSI layer in the order that they arrive. C. UDP will drop the datagrams. D. UDP will use the sequence numbers in the datagram headers to reassemble the data in the correct order. Answer: B QUESTION 74 While troubleshooting a connectivity problem, a network administrator notices that a port status LED on a Cisco Catalyst series switch is alternating green and amber. Which condition could this indicate? A. The port is experiencing errors. B. The port is administratively disabled. C. The port is blocked by spanning tree. D. The port has an active link with normal traffic activity. Answer: A

144 QUESTION 75 What TCP/IP stack configuration features can DHCP provide, in addition to assigning an IP address?(choose three.) A. Default gateway B. DNS servers C. FTP server D. Helper address E. Subnet mask F. TFTP server Answer: ABE QUESTION 76 Refer to the exhibit. Which two statements are true based the output of the show frame-relay lmi command issued on the Branch router? (Choose two.) A. LMI messages are being sent on DLCI 0. B. LMI messages are being sent on DLCI C. Interface Serial0/0 is not configured to encapsulate Frame Relay. D. The Frame Relay switch is not responding to LMI requests from the router. E. The LMI exchange between the router and Frame Relay switch is functioning properly. F. The router is providing a clock signal on Serial0/0 on the circuit to the Frame Relay switch. Answer: AD QUESTION 77 Refer to the exhibit. Which statement describes DLCI 17?

145 A. DLCI 17 xn R2 and R3. B. DLCI 17 describes a PVC on R2. It cannot be used on R3 or R1. C. DLCI 17 is the Layer 2 address used by R2 to describe a PVC to R3. D. DLCI 17 describes the dial-up circuit from R2 and R3 to the service provider. Answer: C QUESTION 78 Refer to the exhibit. Switch-1 needs to send data to a host with a MAC address of 00b0.d056.efa4. What will Switch-1 do with this data? A. Switch-1 will drop the data because it does not have an entry for that MAC address. B. Switch-1 will flood the data out all of its ports except the port from which the data originated. C. Switch-1 will send an ARP request out all its ports except the port from which the data originated. D. Switch-1 will forward the data to its default gateway. Answer: B QUESTION 79 What is the objective of a default route? A. Offering routing to override the configured dynamic routing protocol B. Offering routing to a local web server C. Offering routing from an ISP to a stub network D. Offering routing to a destination that is not specified in the routing table and which is outside the local network

146 Answer: D default route 의목적은무엇인가? QUESTION 80 Which spread spectrum technology does the b standard define for operation? A. IR B. DSSS C. FHSS D. DSSS and FHSS E. IR, FHSS, and DSSS Answer: B QUESTION 81 On point-to-point networks, OSPF hello packets are addressed to which address? A B C D E F Answer: E Point-to-Point 네트워크에서 OSPF hello 패킷은어느주소로전달되는가? QUESTION 82 Refer to the exhibit. Switch1 has just been restarted and has passed the POST routine. Host A sends its initial frame to Host C. What is the first thing the switch will do as regards populating the switching table? A. Switch1 will add to the switching table. B. Switch1 will add to the switching table. C. Switch1 will add 000A.8A47.E612 to the switching table.

147 D. Switch1 will add 000B. DB95.2EE9 to the switching table. Answer: C QUESTION 83 What should be part of a comprehensive network security plan? A. Allow users to develop their own approach to network security. B. Physically secure network equipment from potential access by unauthorized individuals. C. Encourage users to use personal information in their passwords to minimize the likelihood of passwords being forgotten. D. Delay deployment of software patches and updates until their effect on end-user equipment is well known and widely reported. E. Minimize network overhead by deactivating automatic antivirus client updates. Answer: B 포괄적인네트워크보안계획의일부가되어야하는것은무엇인가? QUESTION 84 Exhibit: The user of Host1 wants to ping the DSL modem/router at Based on the Host1 ARP table that is shown in the exhibit, what will Host1 do? A. Send a unicast ARP packet to the DSL modem/router B. Send unicast ICMP packets to the DSL modem/router C. Send Layer 3 broadcast packets to which the DSL modem/router responds D. Send a Layer 2 broadcast that is received by Host2, the switch, and the DSL modem/router Answer: B host1 의사용자는 의 DSL modem/router 에 ping 을하기를원한다. 보기에서보이는 host1 ARP table 을기반으로하여 host1 이무엇을할것인가? QUESTION 85 You are securing a network and want to apply an ACL (access control list) to an interface of a router. Which one of the following commands would you use?

148 A. apply access-list 101 out B. ip access-group 101 out C. access-class 101 out D. permit access-list 101 out Answer: B QUESTION 86 Refer to the exhibit. Why would the network administrator configure RA in this manner? A. To give students access to the Internet B. To prevent students from accessing the command prompt of RA C. To prevent administrators from accessing the console of RA D. To give administrators access to the Internet E. To prevent students from accessing the Internet F. To prevent students from accessing the Admin network Answer: B QUESTION 87 A default Frame Relay WAN is classified as what type of physical network? A. Point-to-point B. Broadcast multi-access C. Nonbroadcast multi-access D. Nonbroadcast multipoint E. Broadcast point-to-multipoint Answer: C

149 QUESTION 88 Refer to the exhibit. The network shown in the exhibit is running the RIPv2 routing protocol. The network has converged, and the routers in this network are functioning properly. The FastEthernet0/0 interface on R1 goes down. In which two ways will the routers in this network respond to this change? (Choose two.) A. All routers will reference their topology database to determine if any backup routes to the network are known. B. Routers R2 and R3 mark the route as inaccessible and will not accept any further routing updates from R1 until their hold-down timers expire. C. Because of the split-horizon rule, router R2 will be prevented from sending erroneous information to R1 about connectivity to the network. D. When router R2 learns from R1 that the link to the network has been lost, R2 will respond by sending a route back to R1 with an infinite metric to the network E. R1 will send LSAs to R2 and R3 informing them of this change, and then all routers will send periodic updates at an increased rate until the network again converges. Answer: CD 보기에서보이는네트워크는 RIPv2 라우팅프로토콜이실행중이다. 네트워크는이네트워크에있는라우터가제대로작동하고있다는것을수렴하였다. R1 에 FastEthernet0/0 인터페이스는다운되었다.. 네트워크에있는라우터가이러한변화에대응하기위한두가지방법은무엇인가? QUESTION 89 Refer to the exhibit. Assume that all router interfaces are operational and correctly configured. In addition, assume that OSPF has been correctly configured on router R2. How will the default route configured on R1 affect the operation of R2? A. Any packet destined for a network that is not directly connected to router R1 will be dropped. B. Any packet destined for a network that is not directly connected to router R2 will be dropped immediately. C. Any packet destined for a network that is not directly connected to router R2 will be dropped immediately because of the lack of a gateway on R1.

150 D. The networks directly connected to router R2 will not be able to communicate with the , , and subnetworks. E. Any packet destined for a network that is not referenced in the routing table of router R2 will be directed to R1. R1 will then send that packet back to R2 and a routing loop will occur. Answer: E 모든라우터인터페이스는동작과정확하게구성되었다고가정한다. 뿐만아니라, OSPF 는라우터 R2 에서정확하게구성되어있다고가정한다. R1 에서 R2 의동작에영향을미치는기본경로는어떻게구성되는가? QUESTION 90 What is the purpose of the Cisco VLAN Trunking Protocol? A. To allow traffic to be carried from multiple VLANs over a single link between switches B. To allow native VLAN information to be carried over a trunk link C. To allow for managing the additions, deletions, and changes of VLANs between switches D. To provide a mechanism to manually assign VLAN membership to switch ports E. To provide a mechanism to dynamically assign VLAN membership to switch ports Answer: C VLAN 트렁킹프로토콜의목적은무엇인가? QUESTION 91 The Frame Relay network in the diagram is not functioning properly. What is the cause of the problem? A. The Gallant router has the wrong LMI type configured B. Inverse ARP is providing the wrong PVC information to the Gallant router C. The S3 interface of the Steele router has been configured with the frame-relay encapsulation ietf command D. The frame-relay map statement in the Attalla router for the PVC to Steele is not correct E. The IP address on the serial interface of the Attalla router is configured incorrectly Answer: D 다이어그램에프레임릴레이네트워크가제대로작동하지않는다. 문제의원인은무엇인가?

151 QUESTION 92 You just entered the following command: Company (config)# line console 0 A. Configure the terminal type. B. Enter protocol parameters for a serial line. C. Create a password on the console terminal line. D. Establish a terminal type 4 connection to a remote host. Answer: C 당신은바로전에다음명령어를입력하였다.: Company (config)# line console 0 QUESTION 93 The command frame-relay map ip broadcast was entered on the router. Which of the following statements is true concerning this command? A. This command should be executed from the global configuration mode. B. The IP address is the local router port used to forward data. C. 102 is the remote DLCI that will receive the information. D. This command is required for all Frame Relay configurations. E. The broadcast option allows packets, such as RIP updates, to be forwarded across the PVC. Answer: E frame-relay map ip broadcast 명령이라우터에입력되었다. 다음중이명령에관한사실은어느것인가? QUESTION 94 Refer to the exhibit. The switches on a campus network have been interconnected as shown. All of the switches are running Spanning Tree Protocol with its default settings. Unusual traffic patterns are observed and it is discovered that Switch9 is the root bridge. Which change will ensure that Switch1 will be selected as the root bridge instead of Switch9? A. Lower the bridge priority on Switch1. B. Raise the bridge priority on Switch1. C. Lower the bridge priority on Switch9 D. Raise the bridge priority on Switch9. E. Disable spanning tree on Switch9. F. Physically replace Switch9 with Switch1 in the topology. Answer: A

152 컴퍼스네트워크에서스위치는표와같이상호작용을하게되어있다. 모든스위치는기본설정으로 Spanning Tree Protocol (STP) 을실행한다. 비정상적인트래픽패턴은관찰되는데 Switch9 루트브릿지는이것을발견하였다. Switch1 이 Switch9 대신루트브리지로선정될수있도록어떠한변경이있어야하는가? QUESTION 95 Exhibits Click Select and Place Answer:

153 Section: Drag & Drop 사용자는인터넷에연결이되지않는다. 문제해결을위해레이어기반의접근방법을사용하며저수준레이어부터시작한다. 아래를참고하여컨텐츠를적절한모듈로드래그하시오. QUESTION 96 Exhibits Click Select and Place

154 Answer: Section: Drag & Drop 왼쪽의보안기법를오른쪽에명시된보안위험성을차단할수있곳으로드래그하시오.( 모든옵션이사용되지는않는다 ) QUESTION 97 Exhibits Click Select and Place

155 Answer: Section: Drag & Drop 왼쪽의케이블종류를오른쪽에나열된목적에맞는곳으로드래그하시오. QUESTION 98 Exhibits Click Select and Place

156

157 Answer: Section: Drag & Drop PC_1 은 FTP 서버로패킷을전송하고있다. RouterA 의 fa0/0 인터페이스에서 RouterB 로출발하는패킷을가정한다. 올바른프레임과패킷주소를테이블의해당위치로드래그하시오. QUESTION 99 Exhibits Click Select and Place

158 Answer:

159 Section: Drag & Drop 시스코라우터는여러방법을통해 에대한경로를알게되었다. 라우터는하나만을선택하여라우팅테이블에저장한다. 왼쪽의경로를오른쪽의우선순위를나타내는목록에드래그하여라우터에서경로선정시사용하는우선순위를표시하시오. QUESTION 100 Exhibits Click Select and Place

160 Answer: Section: Drag & Drop 왼쪽이옵션을오른쪽에기술된스위치타입에맞게드래그하시오.

161 QUESTION 101 Exhibits Click Select and Place Answer:

162 Section: Drag & Drop 왼쪽의용어를오른족의 OSI 계층에맞게일치시키시오. ( 모든옵션이사용되지는않는다 ) QUESTION 102 Exhibits Click Select and Place

163 Answer:

164 Section: Drag & Drop 왼쪽의 5 단계부팅순서를오른쪽의빈칸에맞게드래그하시오.( 모든옵션이적용되지는않는다 ) QUESTION 103 Exhibits Click Select and Place Answer:

165 Section: Drag & Drop 시스코디폴트 AD(administrative distance) 를알맞은라우팅프로토콜또는경로 (route) 로드래그하시오. ( 모든옵션이사용되지는않는다 ) QUESTION 104 Exhibits Click Select and Place

166

167 Answer: Section: Drag & Drop 로컬라우터에아래의명령을통해라우팅이설정되었다. 왼쪽의목적지 ip 주소를오른쪽의올바른 next hop address 로드래그하시오. QUESTION 105 Exhibits Click Select and Place

168 Answer:

169 Section: Drag & Drop 왼쪽용어들을오른쪽의해당설명항목으로드래그하시오.( 모든옵션이사용되지는않는다 ) QUESTION 106 Exhibits Click Select and Place

170 Answer: Section: Drag & Drop 왼쪽의각카테고리를오른쪽의출력결과에알맞은곳으로드래그하시오. 각출력결과는 show ip interface 명령의결과이다.( 모든카테고리가사용되지는않는다 ) QUESTION 107 Exhibits Click Select and Place

171 Answer:

172 Section: Drag & Drop 왼쪽의각각의특성을오른쪽의적절한라우팅프로토콜로드래그하시오. QUESTION 108 Exhibits Click Select and Place

173 Answer: Section: Drag & Drop 왼쪽의연결타입을오른쪽의적당한케이블형태로드래그하시오.( 모든옵션이사용되지는않는다 ) QUESTION 109 Exhibits Click Select and Place

174 Answer: Section: Drag & Drop

175 왼쪽의설명내용을오른쪽의라우팅프로토콜로드래그하시오.( 모든옵션이사용되지는않는다 ) QUESTION 110 Exhibits Click Select and Place

176 Answer: Section: Drag & Drop 기능에맞게 Spanning-tree protocol 포트상태를오른쪽의올바른위치로드래그하시오. ( 모든옵션이사용되지는않는다 )

177 QUESTION 111 Answer: Section: Drag & Drop

178 QUESTION 112 Exhibits Click Select and Place Answer:

179 Section: Drag & Drop TestInside 네트워크의보안을강화하기위해, 관리자는 ACL 을사용한다. 관리자가 access list 를사용하는이유 2 가지는무엇인가? QUESTION 113 Exhibits Click Select and Place

180 Answer: Section: Drag & Drop 적절한위치에항목들을드래그하시오 QUESTION 114

181 Exhibits Click Select and Place

182 Answer:

183 Section: Drag & Drop RA 는 NAT 오버로드 (overload) 모드로구성되었다. 호스트 pc 는패킷을웹서버로보내고있다. 연관있는 ip 주소를드래그하여 NAT 용어테이블을채우시오. 주의 : 주소는사용되지않거나한개또는그이상사용된다. QUESTION 115 Exhibits Click Select and Place

184

185 Answer:

186 Section: Drag & Drop /27 ip 주소를가지고있는호스트는해당서브넷외부의모든호스트에접속하는것을차단하도록한다. 해당목적을이루기위해, 아래괄호를완성하시오. [access-list 100 deny protocol address mask any]. 위가이드에따라항목을적절한위치로드래그하시오. QUESTION 116 Exhibits Click Select and Place

187

188 Answer:

189 Section: Drag & Drop Missouri 지사라우터는 s0 인터페이스를통해 Alabama 본사라우터의 s1 에연결되어있다. Alabama 라우터는 2 개의 LAN 이연결되어있다. Missouri 사용자는본사라우터를통해인터넷접속을한다. 네트워크인터페이스토폴로지주소는다음과같다 : Missouri: e /28; Alabama: e /28 e /28 s /28 accounting 서버의 ip 주소는 /28 이다. 왼쪽의 access list 조건과오른쪽의목적을서로일치시키시오.( 모든옵션이사용되지는않는다 ) QUESTION 117 Exhibits Click Select and Place

190 Answer:

191 Section: Drag & Drop 왼쪽의설명항목을오른쪽의라우팅프로토콜로드래그하시오.( 모든옵션이사용되지는않는다 ) QUESTION 118 Exhibits Click Select and Place

192

193 Answer:

194 Section: Drag & Drop CCNA 지원자로써, OSI 모델에대해서는정확히이해가요구된다. WAN(Wide Area Network) 구간에서작동되는 OSI 계층은무엇인지해당항목을적절한위치로드래그하시오. QUESTION 119 Exhibits Click Select and Place

195

196 Answer:

197 Section: Drag & Drop TestInside 네트워크관리자로써, 네트워크보안정책을설정하는것이요구된다. 해당정책은스위치인터페이스에동적으로연결된호스트하나만이접근하도록요구하고있다. 해당정책위반시인터페이스는셧다운하도록한다. 네트워크관리자가 2950 카탈리스트스위치 SWTestInside1 에해당정책을만족할수있도록하기위한한명령 2 가지는무엇인가? 적절한명령을드래그하여위치시키시오. QUESTION 120 Exhibits Click Select and Place

198

199 Answer:

200 Section: Drag & Drop 당신은 Specialty Hardware 기업에네트워크구성형태를문서화하기위해고용되었다아래임무를완성하시오. 아래그림에서적절한라우터와인터페이스타입, IP 주소를드래그하여네트워크토폴로지를완성하시오. 필요한정보는라우터에연결된콘솔을이용하여해당정보를찾으시오. QUESTION 121 Exhibits Click Select and Place

201 Answer:

202 Section: Drag & Drop CCNA 지원자로써텔넷을가끔사용할필요가있다. 텔넷의 2 가지특징은무엇인가? 적절한설명을찾아해당위치로드래그하시오. QUESTION 122 Exhibits Click Select and Place

203 Answer:

204 Section: Drag & Drop CCNA 지원자로써 EIGRP 에대해서자세히알고있어야한다. RAM 에저장되며 hello 와 update 패킷을사용하여해당테이블을유지하는 EIGRP 라우트테이블은무엇인가? 적절한테이블을찾아해당위치로드래그하시오. QUESTION 123 Exhibits Click Select and Place

205 Answer:

206 Section: Drag & Drop 올바른장비명또는올바른위치설명문구를드래그하여네트워크구성을완성하시오. ( 모든장비명과설명문구가사용되지는않는다 ) QUESTION 124 Exhibits Click Select and Place

207 Answer:

208 Section: Drag & Drop 왼쪽의설명을드래그하여오른쪽의용어와일치시키시오. QUESTION 125 Exhibits Click Select and Place

209 Answer:

210 Section: Drag & Drop 왼쪽의 WAN 구간연결타입에따른장단점에대한내용을오른쪽의올바른박스로드래그하시오. QUESTION 126

211 Answer:

212 Section: Drag & Drop QUESTION 127 Exhibits Click Select and Place

213

214 Answer:

215 Section: Drag & Drop QUESTION 128 Exhibit. Drag the description on the left to the correct router mode on the right. Click Seclet and Place

216 Answer: Section: Drag & Drop QUESTION 129 All hosts in the same subnet with /26 must be denied Telnet access to hosts outside the LAN. To complete the bracketed command, [ access-list list number deny tcp _ address _mask_any eq port_], drag each appropriate option on the left to its proper placeholder on the right. (Not all options are used.)

217 Answer:

218 Section: Drag & Drop QUESTION 130 Exhibit A dental firm is redesigning the network that connects its three locations. The administrator gave the networking team to use for addressing the entire netwok. After subnetting the address, the team is ready to assign the addresses. The administrator plans to configure ip subnet-zero and use RIP v2 as the routing protocol. As a member of the networking team, you must address the network and at the same time conserver unused addresses for future growth. With those goals in mind, drag the host addresses on the left to the correct router interface. Once of the routers is partially configured. Move your mouse over a router to view its configuration. Not all of the host addresses on the left are necessary. Click Select and Place

219 Answer: Section: Drag & Drop QUESTION 131 Exhibit A dental firm is dedesigning the network hat connects its three locations. The administrator gave the networking team to use for addressing the entire network. After subnetting the address, the team is ready to assign the addresses. The administrator plants to configure ip subnet-zero and use RIP V2 as the routing protocal. As a memebr of the networking team. you must address the network and at the same time conserve unused addresses for future growth. With those goals in mind. drag the host addresses on the left to the correct router interface. One of the routers is partially configured. Move your mouse over a router to view its configuration. Not all of the host addresses on the left are necessary. Click Select and Place

220 Answer: Section: Drag & Drop

221 QUESTION 132 Exhibit A dental firm is dedesigning the network hat connects its three locations. The administrator gave the networking team to use for addressing the entire network. After subnetting the address, the team is ready to assign the addresses. The administrator plants to configure ip subnet-zero and use RIP V2 as the routing protocal. As a memebr of the networking team. you must address the network and at the same time conserve unused addresses for future growth. With those goals in mind. drag the host addresses on the left to the correct router interface. One of the routers is partially configured. Move your mouse over a router to view its configuration. Not all of the host addresses on the left are necessary. Click Select and Place Answer:

222 Section: Drag & Drop QUESTION 133 LAB ACCESS LIST

223 A <<<< 설정명령어 >>>> Corp1>en Password : cisco Corp1#conf t Corp1(config)#access-list 100 permit tcp host host eq 80 Corp1(config)# access-list 100 deny tcp any host eq 80 Corp1(config)# access-list 100 permitip any any Corp1(config)# int fa0/1 Corp1(config-if)# ip access-group 100 out Corp1(config-if)# end

224 Corp1#copy run start <<< 묻고따지지도않는공식 >>> ACL 에대해잘모른다고하면간단하게아래와같이공식처럼암기접속허용호스트 (IP) 와서버 IP 가바뀌더라도공식처럼외우면풀수있는문제임. 접속허용호스트 (PC) IP : allow ONLY host A~D (IP Address) web access to the Finance Web Server 접속할서버 IP : Finance Web Server IP Address Corp1>en Password : cisco Corp1#conf t Corp1(config)#access-list 100 permit tcp host 접속허용호스트 (PC) IP host 접속할서버 (Finance Web Server) IP eq 80 Corp1(config)# access-list 100 deny tcp any host 접속할서버 (Finance Web Server) IP eq 80 Corp1(config)# access-list 100 permitip any any Corp1(config)# int fa0/1 Corp1(config-if)# ip access-group 100 out Corp1(config-if)# end Corp1#copy run start or

225 Answer: A Section: Lab QUESTION 134 LAB EIGRP 212 After adding Interior router, no routing updates are being exchanged between Perimeter and the new location. All other interconnectivity and Internet access for the existing locations of the company are working properly. The Task is to identify the fault(s) and correct the router configurations to provide full connectivity between the routers. Access to the router CLI can be gained by clicking on the appropriate host. All passwords on all routers are cisco. IP Address are listed in the chart below

226 A. Step 1. Perimeter,Interior,Reomte1,Remote2 Router enter the show running-config command Interior Output / Interior router are mismatched Interior#show run Building configuration... Current configuration : 770 bytes!! router eigrp 22 < show run 으로라우터의 eigrp as Number 가잘못되어있음을확인함. network network no auto-summary! version Recognize Interior router Interior#enable password:cisco Interior#configure terminal Interior(config)#no router eigrp 22 Interior(config)#router eigrp 212 Interior(config-router)#network Interior(config-router)#network Interior(config-router)#no auto-summary Interior(config-router)#end Interior#copy running-config startup-config Step 2. Perimeter router with the show running-config command:

227 Perimeter Output / Perimeter router are mismatched Perimeter#sh run Building configuration... Current configuration : 1029 bytes! router eigrp 222 network network network < show run 으로라우터에잘못된네트워크대역이설정되어있음을확인함. network ( 네트워크대역삭제 / 네트워크대역추가 ) no auto-summary! Recognize Perimeter router Perimeter#configure terminal password:cisco Perimeter(config)#router eigrp 212 Perimeter(config-router)#no network Perimeter(config-router)#network Perimeter(config-router)#end Perimeter#copy running-config startup-config Answer: A Section: Lab QUESTION 135 VTP SIM (from 9tut.com) Question: This task requires you to use the CLI of Sw-AC3 to answer five multiple-choice questions. This does not require any configuration. To answer the multiple-choice questions, click on the numbered boxes in the right panel. There are five multiple-choice questions with this task. Be sure to answer all five questions before leaving this item. Notice: All the images in this VTP LAB are used for demonstration only, you will see slightly different images in the real CCNA exam Question 1 What interface did Sw-AC3 associate with source MAC address a0c.ffba?

228 Question 2 What ports on Sw-AC3 are operating has trunks (choose three)? Question 3: What kind of router is VLAN-R1? Question 4: Which switch is the root bridge for VLAN 1? Question 5: What address should be configured as the default-gateway for the host connected to interface fa 0/4 of SW-Ac3?

229 Question 6: From which switch did Sw-Ac3 receive VLAN information? Question 7: Refer to the exibit, SwX was taken out of the production network for maintenance. It will be reconnected to the Fa 0/16 port of Sw-Ac3. What happens to the network when it is reconnected and a trunk exists between the two switches? Question 8: Out of which ports will a frame be forwarded that has source mac-address a0c.fd86 and destination mac-address 000a.8a47.e612? (Choose three) Question 9: If one of the host connected to Sw-AC3 wants to send something for the ip (or any ip that is not on the same subnet) what will be the destination MAC address A. Answer 1 명령어 :sow mac-address-table sow mac-address-table 후맥주소와일치하는포트를찾으면된다 Sw-Ac3#sh mac-address table Mac Address Table

230 Vlan Mac Address Type Ports a0c DYNAMIC Fa0/ eab.5d09 DYNAMIC Fa0/ ce9.d1c7 DYNAMIC Fa0/ a0c DYNAMIC Fa0/ ce9.d1c7 DYNAMIC Fa0/ a0c DYNAMIC Fa0/ ce9.d1c7 DYNAMIC Fa0/ a0c DYNAMIC Fa0/ a0c.ffba DYNAMIC Fa0/8 < 맥주소와일치하는인터페이스포트 ce9.d1c7 DYNAMIC Fa0/ a0c DYNAMIC Fa0/1 Explanation: to find out which interface associated with a given MAC address, use the show mac-address-table command. It shows the learned MAC addresses and their associated interfaces. After entering this command, you will see a MAC address table like this: From this table we can figure out that the MAC address a0c.ffba is associated with interface Fa0/8 #################################################################################################### Answer 2 명령어 : show interface trunk 또는 sh int trunk show int trunk 로트렁크로동작중인포트를선택한다. 실제로토프로지상에서트렁크포트를보면 3 개이지만문제유형에따라답을 2 개고르라는경우도있고 3 개를고르라는경우도있다. 이경우는 3 개고르라는문제의이다.. Explanation: Use the show interface trunk command to determine the trunking status of a link and VLAN status. This command lists port, its mode, encapsulation and whether it is trunking. The image below shows how it works:

231 Answer 3 명령어 :show cdp neighbor show cdp neighbor 후에 Device ID 와 Platform 명이일치하는것을찾으면된다 Explanation: VLAN-R1 is the router directly connected to Sw-Ac3 switch, so we can use the show cdp neighbors command to see: 1. Neighbor Device ID : The name of the neighbor device; 2. Local Interface : The interface to which this neighbor is heard 3. Capability: Capability of this neighboring device - R for router, S for switch, H for Host etc. 4. Platform: Which type of device the neighbor is 5. Port ID: The interface of the remote neighbor you receive CDP information 6. Holdtime: Decremental hold time in seconds Sample output of show cdp neighbors command: ############################################################################################## Answer 4 명령어 : show spanning-tree / show cdp neighbors 문제의정답은 2 개중에하나가된다. 첫번째는 SW-AC3 스위치자신이루트브리지일경우 (Root ID 에 "This bridge is root" 라는정보가보임 ) 두번째는 SW-AC3 스위치가루트브리지가아닐경우 (Root ID 에 Port 번호를확인후 sh cdp neighbor 로스위치를찾음 ) 첫번째일경우는아래와같다. 명령어 : sh spanning-tree vlan 1 ( 또는 show spanning-tree vlan 1) Sw-Ac3#sh spanning-tree vlan 1 VLAN0001 Spanning tree enabled protocol ieee Root ID Priority Address 000B.BE3A.505A This bridge is the root < 문장이보이면그스위치가루트브릿지이다. Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Bridge ID Priority (priority sys-id-ext 1) Address 000B.BE3A.505A Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Aging Time 20 Interface Role Sts Cost Prio.Nbr Type

232 Fa0/9 Desg FWD P2p Fa0/12 Desg FWD P2p Fa0/24 Desg FWD P2p Fa0/1 Desg FWD P2p 두번째일경우는아래와같다. 명령어 : sh spanning-tree vlan 1 ( 또는 show spanning-tree vlan 1) sh cdp neighbor ( 또는 show cdp neighbor) 간단하게찾는방법은 Root ID 에 Port 부분이루트부릿지와연결된포트이다. 그러므로 show cdp neighbor 로 Root ID 에 Port 번호에연결된 Device ID 를찾으면된다. 1. sh spanning-tree vlan 1 실행후루트브릿지포트를확인한다. Sw-Ac3#sh spanning-tree vlan 1 VLAN0001 Spanning tree enabled protocol ieee Root ID Priority Address 000B.BE3A.505A Cost 19 < Fastethernet에연결됨.( cost = Ethenet:100, Fastehternet:19, Giga:4, 10Giga:2 ) Port 12(FastEthernet0/12) Root Bridge가연결된포트 (show cdp neighbor로 fa0/12포트에연결된장비명을확인하면됨 ) Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Bridge ID Priority (priority sys-id-ext 1) Address 00D Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Aging Time 20 Interface Role Sts Cost Prio.Nbr Type Fa0/3 Desg FWD P2p Fa0/9 Desg FWD P2p Fa0/12 Root FWD P2p Fa0/16 Desg FWD P2p 2. sh spanning-tree vlan 1 에서확인된 Port번호를 show cdp neighbor로확인한 Port번호에연결된스위치를찾는다. Sw-Ac3#show cdp neighbor Capability Codes: R - Router, T - Trans Bridge, B - Source Route Bridge S - Switch, H - Host, I - IGMP, r - Repeater, P - Phone Device ID Local Intrfce Holdtme Capability Platform Port ID SwX Fas 0/ S 2960 Fas 0/24 Sw-Ds1 Fas 0/ S 2960 Fas 0/12 < fa0/12 포트의연결된장비는 Sw-Ds1이므로루트브릿지가됨. VLAN-R1 Fas 0/3 168 R C2600 Fas 0/0 Sw-Ac2 Fas 0/9 168 S 2960 Fas 0/9 VLAN-R1 Fas 0/3 168 R C2600 Fas 0/0.1 VLAN-R1 Fas 0/3 168 R C2600 Fas 0/0.22 VLAN-R1 Fas 0/3 168 R C2600 Fas 0/0.33 VLAN-R1 Fas 0/3 168 R C2600 Fas 0/ Explanation: First we use the show spanning-tree vlan 1 to view the spanning-tree information of VLAN1

233 From the "Cost 19", we learn that the root switch is directly connected to the Sw-Ac3 switch over a 100Mbps Ethernet link Notice that if you see all of the interface roles are Desg (designated) then you can confirm Sw-Ac3 switch is the root bridge for this VLAN (VLAN 1). If you see there is at least one Root port in the interface roles then you can confirm Sw-Ac3 is not the root bridge because root bridge does not have root port. In this case, we notice that the root port on Sw-Ac3 switch is FastEthernet0/12, so we have to figure out which switch is associated with this port -> it is the root bridge. You can verify it with the show cdp neighbors command: The "Local Intrfce" column refers to the interface on the switch running "show cdp neighbors" command. In this case, Sw-DS1 is associated with interface FastEthernet0/12 -> Sw-DS1 is the root bridge #################################################################################################### Answer 5 명령어 : show vlan ( 또는 show vlan brif) show vlan or show vlan brif 로 Sw-AC3 의 Fa0/4 에할당된 VLAN 을찾는다. 만약 VLAN44 에할당되어잇다면 VLAN44 의게이트웨이 IP 인 를선택 1.show vlan 을실행후 fa0/4 가속해있는 VLAN 그룹의게이트웨이를찾으면된다. 각 VLAN 그룹의게이트웨이는토폴로지 VLAN-R1 상단에보면명시적으로표시되어있음 Sw-Ac3#show vlan VLAN Name Status Ports default active Fa0/16 22 Servers active Fa0/6 33 Management active Fa0/1, Fa0/2, Fa0/5, Fa0/7 44 Production active Fa0/4, Fa0/8, Fa0/10, Fa0/ (fa0/4에호함된 vlan 그룹확인 ) 99 no-where active Fa0/13, Fa0/14, Fa0/15, Fa0/17 Fa0/18, Fa0/19, Fa0/20, Fa0/21 Fa0/22, Fa0/23, Fa0/24, Gig1/1 Gig1/ fddi-default act/unsup 1003 token-ring-default act/unsup 1004 fddinet-default act/unsup 1005 trnet-default act/unsup

234 Explanation: First we have to identify which VLAN interface Fa0/4 belongs to by the show vlan command From the exhibit we know that VLAN 44 is configured on router using sub-interface Fa0/0.44 with IP address /24 Therefore the default gateway of the host should be ################################################################################################### Answer 6 명령어 :show vtp status show vtp status 명령어를이용하여정보를분석한다. VTP 도메인명이없다면 VTP 가안돌아가니까 SW-AC3 이정답이다. VTP 가돌아간다면일단 VTP Operation 모드를살펴봐야한다. 만약 SW-AC3 이 Transparent 모드라면 D 번이정답이다.(Transparent 모드는동기화를안시키기때문 ) 만약 Server or Client 라면? Show vtp status 명령어가장아래보면 configuration last modified 정보와 Local updater ID 정보를가지고해답을찾아야한다. configuration last modified 정보에 VLAN 정보를준 Switch IP 가보일것이다. 이 IP 가누구껀지찾아야한다. show cdp neighbor detail 로직접연결된 SW-AC2 와 SW-DS1 의정보를앞서 configuration last modified 정보를비교하여찾는다. ~~ SW-AC1 은답이될수없다. 왜냐면 VTP 정보는트렁크링크를통해전달됨으로.. SW-AC3 은직접연결되지않은 SW-AC1 에게로부터 VTP 를통해 VLAN 정보를받을수없다. Explanation: to view the VTP configuration information, use the show vtp status command So we knew Sw-Ac3 received VLAN information from (notice:the IP address may be different). Finally we use the show cdp neighbors detail to find out who is:

235 ######################################################################################### Answer 7 명령어 :show vtp status show vlan 이문제를해결하기위해서는여러가지사항을확인해봐야하는데 VTP 도메인이름이동일할경우 Revision 번호에따라정답이 C 또는 D 가될수있다. 또한보통시험에서는 C 나 D 일경우가많다참고 : Revision 번호가큰스위치의정보가낮은스위치로교체된다. 1 SW-AC3 의 Revision Number 가클경우 SW-AC3 의 VTP 정보를 SXW 스위치에 Replace 한다. 2 SWX 의 Revision Number 가클경우 SW-AC3 의 VTP 정보를 AC3 스위체에 Replace 한다. C. The VLANs Servers, Management, Production, and no-where will replace the VLANs on SwX 가답일경우 SWX 의 Revision 번호가 SW-AC3 의 Revision 번호보다클경우에해당된다. 이경우 SWX 의정보 VLAN 이름 SW-AC3 에교체되어서로동일한정보를가지고있어야하는데 SW-AC3 의 VLAN 정보를보면교체되지않을것볼수있다. 이렇때생각해볼수있는것은교체가아직안되다고볼수도있다. 즉, SWX 의 VLAN 정보가 SW-AC3 에 VLAN 정보가아직교체되지안았고교체가능성이있다고볼수있다. SXW 스위치 VLAN 정보 SW-AC3 스위치 VLAN 정보

236 D. The VLANs Servers, Management, Production, and no-where be removed from existing switche 가답일경우 SW-AC3 의 Revision 번호가 SXW Revision 번호보다클경우에해당된다. 이경우 SW-AC3 의정보 VLAN 이름 SXW 에교체되어서로동일한정보를가지고있어야하는데 SXW 의 VLAN 정보를보면교체되지않을것볼수있다. 이렇때생각해볼수있는것은교체는되었는데삭제되었다고볼수도있다. 즉, SW-AC3 에 VLAN 정보가 SXW 에 VLAN 정보가교체되었다가삭제되었을가능성이있다고볼수있다. SW-AC3 스위치 VLAN 정보 SXW 스위치 VLAN 정보

237 참고 : 위의내용을기반으로쉽게답을찾는방법은 SWX 의 Revision 번호클경우는 C 가정답이고 SW-AC3 의 Revision 번호가클경우 D 가정답이다 Answer and Explanation: First we should view the VTP configuration of switch Sw-Ac3 by using the show vtp status command on Sw-Ac3 Notice that its configuration revision number is 5 and VTP Domain Name is home-office Next, from the exhibit we know that SwX has a revision number of 6, which is greater than that of Sw-Ac3 switch, and both of them have same VTP Domain Name called "home-office". Therefore SwX will replace vlan information on other switches with its own information. We should check vlan information of Sw-Ac3 switch with show vlan command So the correct answer is D - The VLANs Servers, Management, Production and no-where will be removed from existing switches Please remember that in the real CCNA exam you may see a different configuration revision of Sw-Ac3 or of SwX. In general, which switch has a higher revision number it will become the updater and other switches will overwrite their current databases with the new information received from the updater (provided that they are on the same domain and that switch is not in transparent mode) ################################################################################################ Answer 8 명렁여 :show mac-address-table sh vlan sh int trunk 이문제는 2 가지를핵심키포인트로보면된다. 1. 문제에서요구하는 source MAC address 또는 destination MAC address 가포함된 VLAN 의포트를찾는다. VLAN 이포함된포트는모두프레임을포워딩하게된다. 단, 문제에요구하는 source MAC address 또는 destination MAC address 의 VLAN 포트는제외한다. show mac-address-table sh vlan show mac-address-table

238 VLAN 은 33 이고사용포트는 Fa0/1,Fa0/3,Fa0/6,Fa0/12 이다. 단, Fa0/6 의맥주소는문제에서제시한맥주소로제외해야한다. 그러므로 Fa0/1,Fa0/3,Fa0/12 3 개가사용되고있다. 그다음에 VLAN 33 에포함된포트를찾는다. sh vlan sh vlan 으로확인하면 Fa0/1,Fa0/2,Fa0/5,Fa0/6,Fa07 가 VLAN 33 에속한포트임을확인할수있다. 하지만 FA0/6 은제외한다고위에서언급하였으니 Fa0/1,Fa0/2,Fa0/3,Fa0/7,Fa0/12 5 개가사용가능한포트임을확인할수있다. 그다음에트렁크포트를찾으면된다. 2. 트렁크포트는모두프레임을포워딩하게된다. sh int trunk sh int trunk 로확인된포트는 Fa0/3,Fa0/9,Fa0/12 를확인할수있다. 위에서찾은포트와모두포함하면 Fa0/1,Fa0/2,Fa0/3,Fa0/7,Fa0/9,Fa0/12 이다. 보기에위의포트가있으면선택하면된다 ^^ Explanation: First we check to see which ports the source mac-address and the destination mac-address belong to by using show mac-address-table command

239 We notice that the source mac-address a0c.fd86 is listed in the table and it belongs to Vlan 33 but we can't find the destination mac-address 000a.8a47.e612 in this table. In this case, the switch will flood to all ports of Vlan 33 and flood to all the trunk links, except the port it received this frame (port Fa0/6). Therefore from the output above, we can figure out it will flood this frame to Fa0/1, Fa0/3 and Fa0/12. Please notice that the "show mac-address-table" command just lists information that was learned by the switch, it means that there can be other ports besides Fa0/1, Fa0/3 and Fa0/12 belong to Vlan 33. You can use the show vlan command to see which ports belong to vlan 33 And we found other ports which belong to vlan 33, they are Fa0/2, Fa0/5 and Fa0/7. Our switch will flood the frame to these ports, too. And we can check which trunk ports will receive this frame by the show interface trunk command -> Port Fa0/9 will also receive this frame! ##################################################################################################### Answer 9 Explanation: Because the destination address is not on the same subnet with the switch, it will forward the packet to its default gateway. So we have to find out who is the default gateway of this switch by using the show running-config command

240 From the output, we notice that its default-gateway is In fact, we can easily guess that its default gateway should be a layer 3 device like a router; and in this case, the VLAN-R1 router. To verify our theory, use the show cdp neighbor detail command and focus on the description of VLAN-R1 router From this output, we can confirm the switch's default gateway is VLAN-R1 router (with the IP address of ). And "the interface: FastEthernet0/3" tells us that the switch is connected to VLAN-R1 router through Fa0/3 port (Fa0/3 is the port on the switch). Finally we just need to use the show mac-address-table command to find out which MAC address is associated with this interface

241 (Notice that in the real CCNA exam the MAC address or port may be different) And we find out the corresponding MAC address is 000a.b7e Although there are some entries of port Fa0/3 with different Vlan but they have the same MAC address Answer: A Section: VTP SIM