Huawei Huawei Certifications H12-831 Questions & Answers

• Question 181:

  In BGPIMPLS IP VPN, if the OSPF protocol is used between PEs and CEs to exchange routing information, the domain identifier (Domain ID) is used to distinguish whether the incoming routes in the VPI instance come from the same OSPF domain.

  A. True

  B. False

  Correct Answer: A

• Question 182:

  According to this figure, it can be known that in VLAN 300, from 17:22:38 to 17:22.44,00e0- fc3d-3bdB. 0 MA, C flaps occurred on 2020-06-04.

  

  A. 5

  B. 65535

  C. 300

  D. 1

  Correct Answer: A

• Question 183:

  Regarding MP-BGP, which of the following descriptions is wrong?

  A. PEandCEpass betweenBGPWhen interactive routing, you need toCEup for eachVPNinstance creationBGPprocess

  B. MP-BGPthe message type,VPNv4route advertisement strategy andBGP-4same

  C. MP-BGPneeds to beVPNv4route assignment private network label

  D. MP-BGPpass throughMP_REA, CH_NLRIandMP_UREA, CH_NLRItwo properties to advertiseVPNv4routing

  Correct Answer: A

• Question 184:

  After the cutover acceptance is completeD. what work still needs to be performed in the closing stage?

  A. Transfer training

  B. data transfer

  C. Acceptance summary

  D. field defense

  Correct Answer: ABCD

• Question 185:

  BFDLink state detection at the heart (millisecond) level can be achieved.

  A. right

  B. wrong

  Correct Answer: A

• Question 186:

  As shown in the figure, on the R1 router, the network administrator can control the path of the traffic entering AS100 after modifying the value of the routing entry sent to R2 through the routing policy.

  

  A. Yes

  B. wrong

  Correct Answer: A

• Question 187:

  The IS-IS Level-1 neighbor relationship between R3 and R4 is not established. According to the information in this figure. What is the possible reason?

  

  A. R3andR4the interconnect interfacecircuit-typeMismatch

  B. R3andR4different area codes

  C. R3andR4ofIS-LevelMismatch

  D. R3andR1ofIIHAuthentication failed

  Correct Answer: B

• Question 188:

  In the process of establishing an LDP session, the active party will first send Initialization information to negotiate parameters. If the passive party does not accept the negotiated parameters, it will send it.

  A. Keepalive Message

  B. Initialization Message

  C. Hello Message

  D. Error Notification Message

  Correct Answer: D

• Question 189:

  Which of the following regular expressions can match only BGP routes that pass through AS200 and then through AS300 eyes?

  A. 200$|300$

  B. A200|A300

  C. _(200 300)_

  D. _[200 300]

  Correct Answer: C

• Question 190:

  In the multi-level RR scenario, a large number of secondary RRs will be connected to the primary RR, which may lead to BGP of the primary RR. The routing table overflows, what method can be used to reduce the risk of overflowing the routing table of the advanced RR BGP?

  A. ORF

  B. route aggregation

  C. routing control

  D. set the sameCluster-ID

  Correct Answer: B