Huawei H12-831 Online Practice Questions and Exam Preparation

Huawei H12-831 Online Questions & Answers

• Question 121:

  On the network shown in the figure, IS-IS runs on R1, R2, R4, and R5, and the area ID is 49.0001. IS-IS runs on R3 and R6, and the area ID is 49.0002. The import-route isis level-2 into level-1 command is configured on R2. In AS 65000, R1, R3, R4, and R6 each establish iBGP peer relationships with R2 and R5. R2 and R5 are Route Reflectors (RRs), and R1, R4, R3, and R6 are clients.

  An iBGP peer relationship is established between R2 and R5, and the same cluster ID is configured. The iBGP peer relationships are established using Loopback0. The IP address of Loopback0 on each router is 10.0.X.X/32, where X is the router number.

  R1 and R4 import the external route 192.168.1.0/24 to BGP through the import-route command, and R3 and R6 import the external route 192.168.2.0/24 to BGP through the import-route command.

  

  Which of the following statements are true?

  A. The BGP routing table of R3 contains one valid route to 192.168.2.0/24.
  B. The BGP routing table of R5 contains two valid routes to 192.168.1.0/24.
  C. The BGP routing table of R2 contains three valid routes to 192.168.1.0/24.
  D. The BGP routing table of R4 contains three valid routes to 192.168.2.0/24.
  B. The BGP routing table of R5 contains two valid routes to 192.168.1.0/24.
  C. The BGP routing table of R2 contains three valid routes to 192.168.1.0/24.
  D. The BGP routing table of R4 contains three valid routes to 192.168.2.0/24.

• Question 122:

  On the OSPF network shown in the figure, R1 and R2 use OSPF to communicate with each other through Loopback0. In addition:

  MPLS LDP is enabled on R1 and R2.

  The LDP transport address is the IP address of Loopback0. A network engineer finds that an LDP session cannot be established between R1 and R2 and runs diagnostic commands (shown in the figure) to locate the fault. Given this, which of

  the following are possible causes of the fault?

  

  Options:

  A. R1's GE0/0/1 rejects packets with the destination IP address 10.0.2.2.
  B. MPLS LDP is not enabled on R2's GE0/0/1.
  C. R2's GE0/0/1 rejects packets with TCP destination port 646.
  D. R1's GE0/0/1 rejects packets with UDP destination port 646.
  B. MPLS LDP is not enabled on R2's GE0/0/1.
  C. R2's GE0/0/1 rejects packets with TCP destination port 646.

• Question 123:

  There are multiple types of MAC address entries on a switch. Which of the following entries are manually configured and cannot be aged out?

  A. MUX MAC address entries
  B. Static MAC address entries
  C. Dynamic MAC address entries
  D. Blackhole MAC address entries
  B. Static MAC address entries
  D. Blackhole MAC address entries

• Question 124:

  As shown below:

  

  A. in the pictureLSAis generated by this router
  B. ShouldLSAThe described destination network is10.0.23.0/24
  C. ShouldLSAis of typeAS-extermal-LSA
  D. This device isA, BR
  B. ShouldLSAThe described destination network is10.0.23.0/24

• Question 125:

  On the OSPFv3 network shown in the figure, area 1 is a common area. Which of the following statements are true?

  

  A. The LSDBs of R1, R2, and R3 are the same.
  B. If R5 imports an external route, R4 does not need to rely on the Inter-Area-Router-LSA to calculate the external route.
  C. R1, R2, and R3 generate Inter-Area-Prefix-LSAs.
  D. The LSDBs of R4 and R5 are the same.
  C. R1, R2, and R3 generate Inter-Area-Prefix-LSAs.
  D. The LSDBs of R4 and R5 are the same.

• Question 126:

  On the OSPF network shown in the figure, the cost values of links are marked. IS-IS Auto FRR is enabled on R1. The primary path from R1 to 10.0.3.3/32 is R1 R2 R3, and the backup path is R1 R4 R2 R3. Is this statement TRUE or FALSE?

  

  A. TRUE
  B. FALSE
  B. FALSE

• Question 127:

  BGP routing policies can control the advertisement and reception of routes.

  A. True
  B. False
  A. True

• Question 128:

  LDP messages are exchanged between LSRs running the LDP protocol. LDP messages can be divided into four types according to their functions. Which of the following is not a message type of LDP?

  A. discovery message
  B. announcement message
  C. conversation message
  D. label exchange message
  D. label exchange message

• Question 129:

  On the network shown in the figure, single-hop BFD is configured on R1 and R2.

  A network engineer finds that the BFD session goes down. To locate the fault, the network engineer queries the BFD configurations on R1 and R2. According to the configuration information marked in the figure, it can be determined that mismatched time parameter settings on R1 and R2 cause the BFD session to go down.

  

  Is this statement TRUE or FALSE?

  A. TRUE
  B. FALSE
  B. FALSE

• Question 130:

  On the OSPF network shown in the figure, the cost values of links are marked. OSPF IP FRR is enabled on R1. The primary path from R1 to 10.0.3.3/32 is R1 -> R2 -> R3, and the backup path is R1 -> R4 -> R2 -> R3.

  

  A. TRUE
  B. FALSE
  A. TRUE