Huawei Huawei Certifications H12-831 Questions & Answers

• Question 91:

  The partial configuration of R1 is as follows. Which statement about OSPF on R1 is correct? ospf 1 router-id 172.16.1 J area 0.0.0.0 network 10.1.12.1 0.0.0.0 network 10.1.13.1 OQO.O network 172 J 6.1.1 0.0.0.0

  

  A. R1The device type isLevel-2

  B. R1The device type could not be determined

  C. R1The device type isLevel-1

  D. R1The device type isLevel-1 -2

  Correct Answer: D

• Question 92:

  What is the value of the linkage between OSPF and BFD?

  A. OSPFofhelloThe sending interval is in seconds, more thanBFDInduction link status is fast

  B. BFDThe message sending interval can reach the millisecond level, which is less thanOSPFInduction link status is slow

  C. Detected at the millisecond levelBFD. associationOSPFstate, fulfilledOSPFThe purpose of quickly sensing the status of the tank

  D. BFDAny change in state will not affectOSPFneighbor state

  Correct Answer: C

• Question 93:

  From this picture, we can judge Summary Count 6

  

  A. R1The type of device is definitely notLevel-1

  B. R1have6stripIS-ISofIPv6routing

  C. R1noIS-ISofIPv6routing

  D. R1ofGigabitEthernetOD/1must be enabledIS-IS IPv6

  Correct Answer: ABD

• Question 94:

  Basic QinQ can choose the outer tag encapsulation method according to the business type.

  A. True

  B. False

  Correct Answer: B

• Question 95:

  In OSPFv3, an LSA whose propagation range is one area has_____kind. (Fill in Arabic numerals only)

  A. 6

  B. 7

  C. 8

  D. 9

  Correct Answer: D

• Question 96:

  From this picture, we can judge

  

  A. If not configured aboutAS_Pathrouting strategy, then3002:-4/128 --must not originate fromAS 65001

  B. R1does not have3002:3/128and3002.-4/128routing

  C. R1have3002.-3/128and3002:.4/128routing

  D. If not configured aboutAS_Pashrouting strategy, then3002:4/28must have originated fromAS 65001

  Correct Answer: CD

• Question 97:

  What is the purpose of configuring LSP fragmentation on an IS-IS device?

  A. make the device unbuildableIS-ISNeighbor

  B. enable the device to support moreIS-ISrouting entry

  C. make the device unable to learnIS-ISrouting information

  D. no real purpose

  Correct Answer: B

• Question 98:

  Regarding BGP/MPLS IPVPN data forwarding, which of the following descriptions is wrong?

  A. data inB, CP/MPLS IP VPNWhen the backbone network is transmitted, it always carries two layers of labels

  B. The inner label when data is forwarded is defined byMP-BGPdistribute

  C. The outer layer label when data is forwarded can beLDPdistribute

  D. PEsend toCEThe data isIPv4Genuine

  Correct Answer: A

• Question 99:

  The Discovery message of LDP is used for neighbor discovery, and LDP has different discovery mechanisms when discovering neighbors. The following statement about the Discovery message in the basic discovery mechanism is correct

  A. TCPAfter the connection is establisheD. LSRdo not continue sendingHello Message

  B. Purpose of the messageIPaddress is multicastIPaddress224.0.0.2

  C. This message is encapsulated inUDPIn the message, the destination port number is646

  D. The message is sent to the specifiedLDP Peer

  Correct Answer: BC

• Question 100:

  The following description of TL in PLSHeader is correct:

  A. Limit the LSR

  B. Control of upstream equipment for label distribution

  C. Similar to the TTL in the IP header, it is used to prevent packet loops

  D. To control label distribution

  Correct Answer: C