Cisco Questions $ Answers

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Cisco 644-906 Questions $ Answers Number: 644-906 Passing Score: 800 Time Limit: 120 min File Version: 38.7 http://www.

1 Cisco Questions $ Answers Number: Passing Score: 800 Time Limit: 120 min File Version: Cisco Questions $ Answers Exam Name: Implementing and Maintaining Cisco Technologies Using IOS XR - (IMTXR)

2 Visualexams QUESTION 1 Refer to the show environmental power-supply command output exhibit. How much power is the system currently using? see exhibit below,,, A. 663 W B W C W D W /Reference: : QUESTION 2 Refer to the show environmental power-supply command output exhibit. see exhibit below,,, How many additional line cards of the same type that are currently in the system can you safely install and remain redundant in the worse power usage if there is a power supply failure? A. 1 B. 2 C. 3 D. 4 E. 5 /Reference: : QUESTION 3 What is the maximum long-term normal operating temperature of the Cisco CRS-1, ASR 9000 Series Routers, and XR Series Routers? A. 40C (104F) B. 50C (122F) C. 55C (131F) D. 65C (149F) /Reference: : QUESTION 4 The Cisco CRS 16-Slot Line Card Chassis Site Planning Guide suggests having 48 inches of clearance behind the chassis. What would definitely happen to the system if there were only 28

3 inches of clearance behind the Cisco CRS 16-Slot Line Card Chassis? A. The system would overheat due to inadequate airflow. B. The fabric card could not be exchanged if one failed. C. The modular services card (MSC) could not be exchanged if one failed. D. The fan tray could not be exchanged if one failed. Correct Answer: D /Reference: : QUESTION 5 How many planes are there in the Cisco CRS-3 switch fabric? A. 1 B. 3 C. 7 D. 8 Correct Answer: D /Reference: : QUESTION 6 What is the cell size of the cells that traverse the switch fabric on the Cisco CRS-3? A. 128 bytes B. 136 bytes C. 144 bytes D. 200 bytes E. 288 bytes Correct Answer: B /Reference: : QUESTION 7 Where are client interfaces terminated on the Cisco CRS-3?

4 A. the modular services card B. the physical layer interface module(s) C. the switch fabric interface terminator D. the Service Processor 40 E. the Service Processor 140 Correct Answer: B /Reference: : QUESTION 8 In which mode can you check the power usage of a chassis? A. in EXEC mode B. in admin mode C. in both EXEC and admin mode D. in ROMMON mode E. in environmental mode Correct Answer: B /Reference: : QUESTION 9 Which two of the following are correct commands to activate the PIE file <hfr-mgbl-p.pie-4.0.1>? (Choose two.) A. install add tftp:// /hfr-mgbl-p.pie activate B. install activate tftp:// /hfr-mgbl-p.pie C. install add disk0:hfr-mgbl-p activate D. install activate disk0:hfr-mgbl-p.pie D /Reference: : QUESTION 10 Which command will correctly deactivate asr9k-mpls-p-4.1.0? A. RP/0/RSP0/CPU0:P1 (admin)#install remove disk0:asr9k-mpls-p B. RP/0/RSP0/CPU0:P1 (config)#install deactivate smu location disk0: C. RP/0/RSP0/CPU0:P1 (admin-config)#deactivate disk0:asr9k-mpls-p D. RP/0/RSP0/CPU0:P1 (admin)#install deactivate disk0:asr9k-mpls-p E. RP/0/RSP0/CPU0:P1 #asr9k-mpls-p disk0:deactivate sync

5 Correct Answer: D /Reference: : QUESTION 11 Which Cisco IOS XR command sequence will load a specific configuration? A. (config)#load disk0:name.cfg B. #copy disk0:name.cfg running-confirguration C. #copy tftp:// /name.cfg D. #load commit changes <name> E. (config)#load commit <name> /Reference: : QUESTION 12 Which of the following functions can be configured in the Administration Config mode? (Choose two) A. BGP routing B. MPLS Traffic Engineering C. SDR hostname D. Secure Shell login E. nonowner SDR Correct Answer: CE /Reference: : QUESTION 13 Which two of the following statements regarding task-based authorization are true? (Choose two.) A. The user group concept in Cisco IOS XR Software relates to a group of users with common characteristics. B. All of the user groups are precreated by default. C. In addition to the predefined task groups, Cisco IOS XR Software provides the ability to custom create task groups consisting of individual tasks. D. User groups and task groups cannot inherit from other user groups and task groups. C

6 /Reference: : QUESTION 14 Where is the LPTS policer applied? A. egress line-card egress queue B. egress line-card CPU C. route processor CPU D. distributed RP CPU E. ingress line card Correct Answer: E /Reference: : QUESTION 15 Referring to the diagram and configuration on Routers XR-1 and XR-2, which three statements are correct? (Choose three.) see exhibit below,,, A. Router XR-1 can never be a designated router or designated intermediate system. B. The transmission of IS-IS packets will be suppressed on interface GigabitEthernet0/0/0/2 on Router XR-1. C. The received IS-IS packets from Router XR-2 will be suppressed from being processed. D. Router XR-1 and Router XR-2 will form a neighbor adjacency, and Router XR-2 will become the designated router or designated intermediate system. E. Router XR-1 will use the incremental shortest path first algorithm when there are minimal topology changes. F. Router XR-1 can form a neighbor adjacency over interface GigabitEthernet0/0/0/2 but will not advertise /24 in its link-state packets (LSPs).

7 Correct Answer: DEF /Reference: : QUESTION 16 What is the correct command to copy the contents of the harddisk:/showtech folder to an FTP server? A. copy harddisk:/showtech location 0/RSP0/CPU0 ftp: B. copy harddisk:/showtech ftp: C. copy /recurse harddisk:/showtech location 0/RSP0/CPU0 ftp: D. copy /recurse harddisk:/showtech ftp: E. copy ftp: harddisk:/showtech Correct Answer: C /Reference: : QUESTION 17 What are the two commands to show all log entries except BGP or configuration-related ones? (Choose two.) A. show log excl [BGP,CONFIG] B. show log excl BGP excl CONFIG C. show log excl (BGP,CONFIG) D. show log excl "BGP CONFIG"

8 Correct Answer: BD /Reference: : QUESTION 18 What is the correct Cisco IOS XR command to configure an autonomous system number 1000 for BGP and to support IPv4, IPv6, and unicast routing? A. router bgp 1000 address-family ipv4 unicast address-family ipv6 unicast B. router bgp 1000 neighbor remote-as 2000 address-family ipv4 unicast address-family ipv6 unicast C. router bgp 1000 address-family vpnv4 unicast address-family vpnv6 unicast D. router bgp 1000 neighbor remote-as 2000 address-family vpnv4 unicast address-family vpnv6 unicast /Reference: : QUESTION 19 Which of the following configurations adds a community to routes that are matched on AS criteria? A. route-policy policy1 if as-path in set1 then set community (356:1000) endif end-policy B. route-policy policy1 if community in set1 then set community (356:1000) additive endif

9 end-policy C. route-policy policy1 if as-path in set1 then set community (356:1000) additive endif end-policy D. route-policy policy1 if as-path neighbor-is set1 then set community (356:1000) additive endif end-policy Correct Answer: C /Reference: : QUESTION 20 Which three commands can verify that the route-policy shown below and applied inbound on the BGP neighbor is working as expected for prefix /8? see exhibit below,,, (Choose three.) A. show bgp include 356:1000 B. show bgp include C. show bgp community 356:1000 include D. show bgp CD /Reference: :

10 QUESTION 21 How would MPLS Label Distribution Protocol, Graceful Restart be configured on TenGigE 0/0/0/1? A. Interface Ten0/0/0/1 mpls ip Graceful-restart B. router ospf interface Ten 0/0/0/1 address-family ipv4 uni mpls ip graceful-restart C. mpls ldp address-family ipv4 unicast mpls ip graceful-restart D. mpls ldp graceful restart interface Ten 0/0/0/1 Correct Answer: D /Reference: : QUESTION 22 How would you configure IS-IS process TEST to support MPLS Traffic Engineering extensions on level 1 and 2 that are intending to run a tunnel across TenGigE 0/0/0/0? A. mpls ldp traffic-eng level-1-2 mpls traffic-eng router-id router isis TEST interface Ten 0/0/0/0 address-family ipv4 unicast B. router isis TEST net address-family ipv4 unicast metric-style wide mpls traffic-eng router-id mpls traffic-eng level-1-2 interface Ten 0/0/0/0 address-family ipv4 unicast C. router isis TEST net address-family ipv4 uni metric-style wide interface Ten 0/0/0/0 address-family ipv4 unicast mpls traffic-eng router-id mpls traffic-eng level-1-2 D. mpls ldp router isis TEST interface Ten 0/0/0/0 address-family ipv4 unicast mpls traffic-eng level-1-2 mpls traffic-eng router-id

11 Correct Answer: B /Reference: : QUESTION 23 When running MPLS Traffic Engineering with Cisco IOS XR Software, which three criteria can be seen when the show mpls traffic-eng tunnels command is executed on a midpoint router? (Choose three.) A. tunnel role B. TE metric C. tunnel ID D. physical bandwidth E. incoming and outgoing label CE /Reference: : QUESTION 24 What are the two prerequisites for enabling multicast-only fast reroute (MoFRR) in a network? (Choose two.) A. There must be an Equal-Cost Multipath (ECMP) topology. B. IP multicast traffic must use the group address /8. C. PIM-SSM needs to be configured. D. There must be a valid reverse path back to the multicast source. D /Reference: : QUESTION 25 Which CLI command can be used to display interfaces statistics? A. RP/0/RSP1/CPU0:ASR9006#monitor interface B. RP/0/RSP1/CPU0:ASR9006#show interfaces summary C. RP/0/RSP1/CPU0:ASR9006#show interfaces statistics inc errors D. RP/0/RSP1/CPU0:ASR9006#show interfaces accounting inc errors E. RP/0/RSP1/CPU0:ASR9006(admin)#show flow platform producer statistics location 0/0/CPU0 F. RP/0/RSP1/CPU0:ASR9006(admin)##show interfaces statistics

12 /Reference: : QUESTION 26 Which three types of packet drop statistics can be determined by using the following Cisco IOS XR CLI show command? (Choose three.) RP/0/RSP1/CPU0:ASR9006-A#show cef ipv4 drops location all A. no route drops B. no adjacency drops C. RPF drops D. ACL drops E. asymmetric routing drops F. Cisco Express Forwarding exception drops BC /Reference: : QUESTION 27 Referring to the configuration output exhibit, see exhibit below,,, which set of commands below will allow you to insert a new line just before the permit any statement? A. :router#configure :router(config)#ipv4 access-list Ethernet_In :router(config-ipv4-acl)# 2.5 deny udp any eq tftp any B. :router#configure :router(config)#ipv4 access-list Ethernet_In :router(config-ipv4-acl)# insert after 2 deny udp any eq tftp any C. :router #resequence access-list ipv4 Ethernet_In :router#configure :router(config)#ipv4 access-list Ethernet_In :router(config-ipv4-acl)#25 deny udp any eq tftp any D. :router#configure :router(config)#ipv4 access-list Ethernet_In :router(config-ipv4-acl)#move 3 to 4 :router(config-ipv4-acl)#3 deny udp any eq tftp any Correct Answer: C /Reference: : QUESTION 28 Which two commands will allow you to check if interface Bundle-Ether1 has ACL Ethernet_In applied to its ingress? (Choose two.)

13 A. show access-list ipv4 Ethernet_In B. show interface Bundle-Ether1 access-list C. show running-config interface Bundle-Ether 1 D. show running-config ipv4 access-list Ethernet_In E. show ipv4 interface Bundle-Ether 1 Correct Answer: CE /Reference: : QUESTION 29 Which Cisco IOS XR command would you use to view the actual traffic statistics of packets that are exiting the router in the different configured QoS queues on TenGigE 0/0/0/0 in Cisco IOS XR Software? A. show policy-map interface TenGigE 0/0/0/0 B. show qos interface TenGigE 0/0/0/0 output C. show interface TenGigE 0/0/0/0 qos D. show interface TenGigE 0/0/0/0 policy-map output E. monitor interface TenGigE 0/0/0/0 /Reference: : QUESTION 30 What are the three potential use cases of NetFlow in an actual network deployment? (Choose three.) A. identifying the traffic source and destination for optimizing peering and transit links B. providing the network telemetry for identifying and mitigating DDoS attacks C. providing traffic traces that are comparable to what is provided by a packet sniffer and RMON D. providing a means for traffic accounting and billing for customers E. providing deep application inspections and controls BD /Reference: : QUESTION 31 Which command configures IPv4 urpf strict mode on an interface? A. ipv4 verify unicast source reachable-via any B. ipv4 verify unicast source reachable-via tx C. ipv4 verify unicast source reachable-via rx

14 D. ipv4 verify unicast destination reachable-via rx E. ipv4 verify multicast source reachable-via tx Correct Answer: C /Reference: : QUESTION 32 Which command in Cisco IOS XR Software is the recommended way to configure an IPv4 address on an interface? A. ip address /8 B. ip address C. ipv4 address /8 D. ip addr add /8 dev Gig 0/0/0/0 Correct Answer: C /Reference: : QUESTION 33 Refer to the exhibit. see exhibit below,,, What is the expected behavior for the following Cisco IOS XR config? A. The interface will have IPv6 address 10:10::1/64 only. B. The interface will have IPv6 address 20:20::1/64 only. C. The interface will have IPv6 address 10:10::1/64 and IPv6 address 20:20::1/64. D. The commit will fail. Correct Answer: C /Reference: :

15 QUESTION 34 Which Cisco IOS XR command is the most useful for checking if traffic is being sent for a specific multicast group? A. show ip mroute traffic B. show mrib route C. show multicast stats D. show mfib route Correct Answer: D /Reference: : QUESTION 35 Which configuration is required in order for chassis management (for example, power and fan statistics) to be polled using SNMP? A. snmp-server community <community> RO B. snmp-server community <community> SDROwner C. snmp-server community <community> SystemOwner D. snmp-server community <community> RW Correct Answer: C /Reference: : QUESTION 36 Which configuration command will set EXEC shell timeout on the console to 300 seconds? A. line console exec-timeout 5 0 B. line console session-timeout 300 C. line console session-timeout 300 output D. line console timeout login response 300 /Reference: : QUESTION 37 Which four list the mandatory steps in order to implement SSH v1 access on Cisco IOS XR Software? (Choose four.) A. install and activate services PIE B. install and activate security PIE C. reload system after installing required PIE

16 D. generate SSH cryptography key E. configure hostname and domain name F. configure ssh-server in owner SDR G. configure AAA services on the router H. configure TACACS server on the router Correct Answer: BDEF /Reference: : QUESTION 38 In which two ways do you set the maximum number of Telnet sessions to 10? (Choose two.) A. telnet vrf default ipv4 server max-servers 10 B. telnet ipv4 server max-servers 10 C. telnet max-servers 10 D. telnet ipv4 max-servers 10 B /Reference: : QUESTION 39 Refer to the exhibit. see exhibit below,,, Examine the configuration for AAA and the vty line. If the user attempts to connect to the router via an SSH session to the vty, which one is true? A. The user will be prompted for a username and password and can successfully log in using "user1" and "lab." The user will be a member of the user group operator. B. The user will be prompted only for a password and can successfully log in using the password "cisco." The user will be a member of the user group operator. C. The user will be prompted only for a password and can successfully log in using the password "cisco." The user will not be assigned any tasks. D. The user will be prompted for a username and password and can successfully log in using "user1" and "lab." The user will be a member of the user group root-system. E. The user will not be able to authenticate with this configuration.

17 Correct Answer: D /Reference: : QUESTION 40 Which command will show the IP address of a Cisco Discovery Protocol neighbor? A. show cdp B. show cdp entry C. show cdp interface D. show cdp neighbors Correct Answer: B /Reference: : QUESTION 41 Refer to the exhibit. see exhibit below,,, Based on the configuration, which two statements are true for RTR1? (Choose two.) A. SNMP traps that are going out on TenGigE 0/0/0/0 will be dropped. B. SNMP polling that is coming through interface TenGigE 0/0/0/0 will be dropped. C. The Telnet connection that is coming through MgmtEth0/RSP0/CPU0/0 will be dropped. D. TACACS traffic that is originating from RTR1 and going through TenGigE 0/0/0/0 will be dropped. E. The SSH connection that is coming through TenGigE 0/0/0/0 from host will be accepted.

18 Correct Answer: BE /Reference: : QUESTION 42 Which statement is false? A. The NTP stratum describes how many hops away that a system is from an authoritative time source. B. A Cisco IOS XR device can be directly connected to an atomic clock and provide a stratum 1 service. C. A Cisco IOS XR device can be configured as a stratum 1 master clock source. D. UTC is a global time scale that is distributed by atomic clocks over the Internet, over specialist long-wave radio transmissions, or with the Global Positioning System (GPS) network. Correct Answer: B /Reference: : QUESTION 43 Which component is shared between different SDRs? A. route processor (RP) B. line card C. modular service card (MSC) D. switch fabric card (SFC) E. distributed route processor (DRP)

19 Correct Answer: D /Reference: : QUESTION 44 On a Cisco CRS, which statement is correct about what happens to the MSC if the associated PLIM is absent? A. The MSC boots up, but all egress packets from the switch fabric to this MSC will be dropped. B. The other PLIM in a different slot can utilize this MSC. C. The state of the MSC from the output of the command show platform would show as IOS XR RUN. D. The MSC does not boot up. Correct Answer: D /Reference: : QUESTION 45 How many stages are there in the Cisco CRS-1 switch fabric? A. 1 B. 3 C. 4 D. 8 E. None, as the Cisco CRS-1 does not use a switch fabric Correct Answer: B /Reference: : QUESTION 46 What is the size of the packets that traverse the Cisco CRS-3 switch fabric? A. variable packets that are dependent on packets being sent through the client interfaces B. 64 bytes C bytes D. not applicable, as the Cisco CRS-3 uses a fixed cell in the switch fabric Correct Answer: D /Reference: : QUESTION 47

20 How many stages of switching are there on a Cisco ASR 9000 Series Router switch fabric? A. one B. three C. four D. eight /Reference: : QUESTION 48 In order to retrieve information from the temperature sensors on the system, what are the two commands that should be invoked? (Choose two.) A. RP/0/RP0/CPU0:CRS-MC#show version B. RP/0/RP0/CPU0:CRS-MC#show platform C. RP/0/RP0/CPU0:CRS-MC(admin)#show environment all D. RP/0/RP0/CPU0:CRS-MC(admin)#show environment temperature E. RP/0/RP0/CPU0:CRS-MC(admin)#show platform Correct Answer: CD /Reference: : QUESTION 49 Which user privilege level is needed to create a nonowner SDR? A. root-system B. Cisco-support C. root-lr D. netadmin E. sysadmin /Reference: : QUESTION 50 What is the effect of a mandatory process, if it keeps restarting? A. router instability B. nothing, as Cisco IOS XR Software protects process space C. the router will reload D. it can cause routing adjacencies to flap

21 E. displays a high CPU load error message Correct Answer: C /Reference: : QUESTION 51 What is the correct Cisco IOS XR CLI command to assign a cost of 20 to interface TenGigE 0/1/0/1 for Area 0? A. config mode, router ospf 1, area 0, interface tengige 0/1/0/1, cost 20 B. config mode, router ospf 1, area 0, interface tengige 0/1/0/1, auto-cost 20 C. config mode, interface tengige 0/1/0/1, ip ospf cost 20 D. config mode, router ospf 1, interface tengige 0/1/0/1, ip ospf cost 20 /Reference: : QUESTION 52 In Cisco IOS XR Software, Label Distribution Protocol (LDP) would be configured on POS 0/0/0/0 using which commands? A. interface pos 0/0/0/0 mpls ip B. mpls ldp interface pos 0/0/0/0 C. router ospf interface pos 0/0/0/0 address family ipv4 uni mpls ip D. mpls ldp address-family ipv4 unicast interface pos 0/0/0/0 mpls ip Correct Answer: B /Reference: : QUESTION 53 Which urpf mode specifies that the source address of the packet is checked against the FIB to make sure that it is being received on the interface that is selected as the best path to this source address? A. strict mode B. loose mode

22 C. asymmetric mode D. symmetric mode /Reference:

Cisco Questions $ Answers

Cisco Questions $ Answers Cisco 644-906 Questions $ Answers Number: 644-906 Passing Score: 800 Time Limit: 120 min File Version: 38.7 http://www.gratisexam.com/ Cisco 644-906 Questions $ Answers Exam Name: Implementing and Maintaining