Huawei H12-891 Online Practice Questions and Exam Preparation

Huawei H12-891 Online Questions & Answers

• Question 251:

  As shown in the figure, the neighbor relationship between R1 and R2 has just been established. Which of the database synchronization process between R1 and R2 is correct?

  

  A. The message sent by R1 to R2 is a PSNP message
  B. The message sent by R1 to R2 is a CSNP message
  C. The message sent by R1 to R2 is an LSP packet
  D. The message sent by R1 to R2 is the Hello packet
  B. The message sent by R1 to R2 is a CSNP message

• Question 252:

  FILL IN THE BLANK

  When static IPsec VPN is used for WAN interconnection in the Huawei CloudCampus Solution, the AP, Router, and _____ can be used as egress devices.

  Firewall

• Question 253:

  An engineer is performing IPv6 tests using two routers and plans to use OSPFv3 to establish IPv6 network connectivity. Which of the following OSPFv3 configurations on R1 are correct? (Choose two)

  A. [R1-GigabitEthernet0/0/1] ospfv3 1 area 0
  B. [R1-ospfv3-1] router-id 10.1.1.1
  C. [R1-ospfv3-1-area-0.0.0.0] network 2001:DB8:2345:12::1 ::
  D. [R1] router id 10.1.1.1
  A. [R1-GigabitEthernet0/0/1] ospfv3 1 area 0
  B. [R1-ospfv3-1] router-id 10.1.1.1

• Question 254:

  Regarding BGP route filtering, which of the following descriptions is incorrect?

  A. The filtering relationship between Route-Policy's nodes is "or," that is, as long as a node filter is passed, it can pass through the Route-Policy.
  B. For routes published locally, configure a routing policy that takes effect before the route is added to the BGP route table.
  C. In the same node of Route-Policy, multiple if-match clauses for different attributes are "or" relationships.
  D. When a route to a BGP peer is received, a routing policy is enforced to filter unwanted BGP routes that are not added to the local BGP routing table.
  C. In the same node of Route-Policy, multiple if-match clauses for different attributes are "or" relationships.

• Question 255:

  Which of the following statements about IS-IS for IPv6 is correct? (Choose three)

  A. To support the processing and calculation of IPv6 routes, IS-IS has added TLVs 232 and 236.
  B. By default, IS-IS has the multi-topology feature turned on.
  C. IS-IS operates at the data link layer and only needs to add a new TLV to support IPv6.
  D. To support the processing and calculation of IPv6 routes, IS-IS has added NLPID to the 129 TLV.
  A. To support the processing and calculation of IPv6 routes, IS-IS has added TLVs 232 and 236.
  C. IS-IS operates at the data link layer and only needs to add a new TLV to support IPv6.
  D. To support the processing and calculation of IPv6 routes, IS-IS has added NLPID to the 129 TLV.

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  Explanation

• Question 256:

  HTTP/2 is a UDP-based low-delay Internet transport layer protocol.

  A. TRUE
  B. FALSE
  B. FALSE

• Question 257:

  In the forwarding table of the switch, a MAC address can correspond to only one outbound interface at a time.

  A. True
  B. False
  B. False

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  Explanation

• Question 258:

  As shown in the following exhibit, an engineer tests network interconnection between two branches. To implement network interconnection, OSPF is deployed on R1, R2, and R3 of branch 1, and IS-IS is deployed on R2, R3, and R4 of branch 2. Which of the following operations needs to be performed to allow R1 to access R4's loopback interface address?

  

  A. Run the default-route-advertise command in both the OSPF and IS-IS views on R2.
  B. No configuration is required.
  C. Run the default-route-advertise command only in the OSPF view on R2.
  D. Run the default-route-advertise command only in the IS-IS view on R2.
  C. Run the default-route-advertise command only in the OSPF view on R2.

• Question 259:

  BGP EVPN Type 2 routes are used to pass IRB-type routes with information including? (Choose three)

  A. Layer 2 VNI
  B. Host IP address
  C. Host MAC address
  D. Layer 3 VNI
  A. Layer 2 VNI
  B. Host IP address
  C. Host MAC address

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• Question 260:

  MPLS is located between the data link layer and network layer in the TCP/IP protocol stack and can provide services for all network layer protocols.

  A. TRUE
  B. FALSE
  A. TRUE