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1 ITdumpsFree Get free valid exam dumps and pass your exam test with confidence

2 Exam : Title : Building Cisco Service Provider Next-Generation Networks, Part 1 (SPNGN1) Vendor : Cisco Version : DEMO Get Latest & Valid Exam's Question and Answers 1 from Itdumpsfree.com. 1

3 NO.1 Refer to the exhibit. Given the Class C IP network of , using VLSM, which five subnets meet the requirements in the exhibit? (Choose five.) A /27 B /27 C /27 D /28 E /28 F /28 G /29 H /30 I /30 Answer: A,B,E,F,I NO.2 Which two statements about IPv4 DHCP operations are true? (Choose two.) A. If the DHCP clients and servers are on the same subnet, DHCP uses UDP broadcasts to communicate between the clients and servers. B. The DHCP server that receives a DHCPDISCOVER message may respond with a DHCPOFFER message on UDP port 67. C. A client can receive DHCPOFFER from multiple servers and it can accept all the offers by broadcasting the DHCPREQUEST message to all the servers. D. A DHCP relay is required if the DHCP clients and the servers are on the same subnet. E. If the client and server are on different subnets, DHCPDISCOVER and DHCPREQUEST messages are sent via UDP broadcasts, but DHCPOFFER and DHCPACK messages are unicast. F. The client broadcasts a DHCPDISCOVER message on UDP port 68 with its own MAC address to discover available DHCP servers. Answer: A,E NO.3 DRAG DROP Drag the concepts from the left and drop them on the correct descriptions on the right. Get Latest & Valid Exam's Question and Answers 2 from Itdumpsfree.com. 2

Answer: NO.4 Given a ring topology, which loop prevention mechanism provides the fastest reconvergence time after a link failure? A. Rapid Per-VLAN Spanning Tree Protocol B.

152.0.0/13 subnet? (Choose three.) A. 10.152.0.0/13 B. 10.153.0.1/13 C. 10.158.255.255/13 D. 10.159.255.254/13 E. 10.160.0.1/13 F. 10.161.0.1/13 Answer: B,C,D NO.

4 Answer: NO.4 Given a ring topology, which loop prevention mechanism provides the fastest reconvergence time after a link failure? A. Rapid Per-VLAN Spanning Tree Protocol B. Resilient Ethernet Protocol C. Multiple Spanning Tree Protocol D. Spanning Tree Protocol Answer: B NO.5 Which three IP addresses are valid for hosts that belong to the /13 subnet? (Choose three.) A /13 B /13 C /13 D /13 E /13 F /13 Answer: B,C,D NO.6 DRAG DROP Drag the Cisco IOS XR command mode from the left and drop it on the correct prompt on the right. Get Latest & Valid Exam's Question and Answers 3 from Itdumpsfree.com. 3

255.255.255.192 and /25 B. 255.255.255.248 and /28 C. 255.255.255.224 and /26 D. 255.255.255.248 and /27 E. 255.255.255.240 and /28 F. 255.255.255.240 and /16 Answer: E NO.

5 Answer: NO.7 Which of the following correctly pairs the dotted decimal subnet mask with the correct number of binary bits that represent the subnet mask? A and /25 B and /28 C and /26 D and /27 E and /28 F and /16 Answer: E NO.8 Which multiplexing technology has minimal impact to production traffic when changes are implemented to a live circuit? A. Dark fiber B. DWDM C. IPoDWDM D. ROADM Answer: D NO.9 HOTSPOT Get Latest & Valid Exam's Question and Answers 4 from Itdumpsfree.com. 4

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12 Answer: Explanation: Fa0/21 Correct network topology is Topology 2 Use "show cdp neighbor" to check and determine the topology. NO.10 Which two statements about NetFlow support on Cisco IOS XR are true? (Choose two.) A. Cisco IOS XR supports NetFlow version 9 export format only. B. NetFlow version 9 is a flexible and extensible means to carry NetFlow records from a network node to a collector. C. IP flow is based on a set of four parameters only (source IP address, destination IP address, source port, and destination port). D. A NetFlow flow is the bidirectional sequence of packets on a single interface. Answer: A,B NO.11 Which three statements about Ethernet frames are true? (Choose three.) A. Every frame starts with a preamble. B. FCS is used to recover single-bit errors. C. The source address is positioned behind the destination address. D. If the data field is too short, it must be padded. E. The dot1q tag size is six bytes. F. The source and destination IP addresses are in the header. Answer: A,C,D NO.12 Which pair of mechanisms are often used together to allow dynamic routing over a secured Get Latest & Valid Exam's Question and Answers 11 from Itdumpsfree.com. 11

13 site-tosite VPN tunnel? A. GRE + SSL B. VTI + SSL C. VRF + SSL D. GRE + IPsec E. L2TP + IPsec F. VRF + IPsec Answer: D NO.13 Which three are features present on both ICMPv4 and ICMPv6? (Choose three.) A. connectivity tests B. address assignment C. information error messaging D. address resolution E. mobile IPv4 support F. multicast group management G. mobile IPv6 support H. fragmentation needed notification Answer: A,C,H NO.14 In IPv6, which kind of record is used for reverse lookups? A. nibble B. AAAA C. PTR D. APL Answer: C NO.15 Which two statements about Packet over SONET are true? (Choose two.) A. POS is a Layer 2 technology that uses PPP in ATM encapsulation and SONET framing. B. The Layer 2 frame is encapsulated into a generic HDLC header (not Cisco proprietary HDLC) and placed into the appropriate SONET Payload Envelope. C. The FCS field can be set to 16 bits on one end and 32 bits on the other end of a POS connection without causing any connectivity issues. D. The Cisco POS interface supports Cisco HDLC and PPP encapsulation. E. POS can be used in a point-to-point or point-to-multipoint environment. Answer: B,D NO.16 Which command set is required to enable a remote SNMP query on an IOS-XR router? A. control-planemanagement-planeinbandinterface allallow SNMPcommit B. control-planemanagement-planeinbandinterface allallow SNMP C. snmp server hostsnmp server contactsnmp-server community stringcommit D. snmp server hostsnmp server contactsnmp-server community string Answer: A Get Latest & Valid Exam's Question and Answers 12 from Itdumpsfree.com. 12

Exam Questions

Exam Questions 640-875 SPNGN1 Building Cisco Service Provider Next-Generation Networks, Part 1 https://www.2passeasy.com/dumps/640-875/ 1.he network administrator is using a Windows PC application that