Huawei Huawei Certifications H12-831 Questions & Answers

• Question 71:

  As shown in the figure, MPLS/BGP IPVPN is deployed on the network. The MP-BGP neighbor relationship is established between PE1 and PE2 through the LoopbackD interface. After the configuration is complete, it is found that CE1 and CE2 cannot learn routes from each other. Run the command to check the error on PE2. The neighbor information is shown in the figure, what is the most likely cause of the problem?

  

  A. PE1orPE2眔fVPNInstance parameter configuration error

  B. PE1andPE2not presentBGP-VPN4Enabling neighbors in unicast address family view

  C. PE1andPE2betweenLSPTunnel not established

  D. PE1orPE2with each otherCEMisconfigured routing protocol between

  Correct Answer: B

• Question 72:

  What is the command to adjust the link cost of an IS-IS interface?

  A. isis cost

  B. isis timer hello

  C. isis circuit-level

  D. isis circuit-type

  Correct Answer: A

• Question 73:

  A company purchased private lines from two operators. In order to optimize the lines, the company used the 6GP protocol to learn from two route entries that operate off. However, after the enterprise found that this configuration, the traffic of the port route increased greatly, and the network engineering arrangement.

  After investigation, it was found that the traffic of the two operators was passed to each other through the enterprise egress router. Therefore, the enterprise intends to use the routing strategy so that the traffic of the packets of different carriers is no longer passed to each other. Is the configuration in the following figure correct?

  

  A. True

  B. False

  Correct Answer: A

• Question 74:

  Engineer Guan used two routers to test IPv6 services. By running the BGP4+ module to communicate with the branch, as shown in Juxin, an engineer captured packets to view the Updte packets sent by R1. Which of the following statements is true about the description of the message information?

  

  A. This message describes only oneBGPAttribute: Multi-protocol unreachableNLRIAttributes

  B. This message describes the current cancellationIPv6routing

  C. The maximum and the preceding length of the routing address described in this packet is:2001:db8:2345:l::l/128

  D. The next hop address of the route described in this packet is:2001:db8:2345:l::l\

  Correct Answer: ABC

• Question 75:

  The security protection actions that a secure MAC address can perform does not include which of the following?

  A. Protect

  B. Restrict

  C. Shutdown

  D. Remark

  Correct Answer: D

• Question 76:

  Network administrator A wants to use A, CL to match only the four routing entries 1 and 3.57 in the figure. Ask the network administrator A at least how many A, CL rules do you need to configure?

  

  A. 2

  B. 1

  C. 4

  D. 3

  Correct Answer: B

• Question 77:

  When a fault occurs, the fault can be classified to reduce the scope of fault location. Which of the following is not an interface configuration fault?

  A. Inconsistent duplex modes of interfaces on both ends

  B. IPaddress conflict

  C. Interface authentication is inconsistent

  D. Inconsistent luminous power at both ends

  Correct Answer: D

• Question 78:

  When B, CPIMPLS TP VPN is deployeD. the OSPF VPN Route Tag (VPN Route Tag) is not transmitted in the extended community attribute of MP-BGP, but the local concept is only meaningful on PE routers that receive MP-BGP routes and generate OSPF LSAs.

  A. True

  B. False

  Correct Answer: B

• Question 79:

  The router ID of OSPF V3 needs to be configured in dotted decimal with a length of 128 bits.

  A. True

  B. False

  Correct Answer: B

• Question 80:

  EGP authentication can prevent illegal routers from establishing neighbors with B, CP routers. B, CP authentication can be divided into MD5.

  Authentication and Keychain authentication, which of the following BGP documents will carry the B, CGP Keychain authentication letter interest? (header carry)

  A. Open

  B. Update

  C. Notice

  D. Keepalive

  Correct Answer: ABCD