Huawei H12-891 Online Practice Questions and Exam Preparation

Huawei H12-891 Online Questions & Answers

• Question 451:

  On a broadcast network, if the DR priorities of two interfaces connecting two routers are set to 0, in which of the following states will the OSPF neighbor relationship stay?

  A. Full
  B. Down
  C. 2-way
  D. Exchange
  C. 2-way

• Question 452:

  If there are multiple recipients in a multicast group, the administrator enables the IGMP Snooping function on the switch connecting the recipients. When the receiver receives the group query packet from the querier via the switch, how should multiple recipients respond?

  A. The first recipient whose response time expires sends the Report message, and the other receivers do not.
  B. All recipients will respond to the Report message only if ICMPv2 is running.
  C. All recipients will respond to the Report message only if IGMPv1 is running.
  D. All recipients will respond to the Report message.
  D. All recipients will respond to the Report message.

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• Question 453:

  A network administrator runs the display telemetry destination command on a device to check information about a destination group that sampled data is sent to. The command output is as follows. Which of the following statements is incorrect?

  [~CE-telemetry-sensor-group-Sensor1]display telemetry destination

  Dest-name Dest-addr Dest-port State Vpn-name Protocol

  Dest1 192.168.56.1 20000 RESOLVED - GRPC

  A. The IP address of the destination group is 192.168.56.1
  B. The destination group name is Dest1.
  C. VPN encapsulation is used for data push.
  D. The gRPC protocol is used for data push.
  C. VPN encapsulation is used for data push.

• Question 454:

  SSH uses asymmetric encryption algorithms AES and DES to achieve security for data transmission, and uses HMAC to ensure the complete integrity of integer data.

  A. TRUE
  B. FALSE
  A. TRUE

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  Explanation

• Question 455:

  In OSPFv3, Router-LSA is generated by each router, which describes the interface address and cost of the router's links, as well as the RouteriD of the neighbor router.

  A. True
  B. False
  B. False

• Question 456:

  The Serial Number field of LS is used to detect expired and duplicate LSAs. The field is a 32-bit signed integer, so the smallest serial number is 0x80000000.

  A. True
  B. False
  B. False

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  Explanation

• Question 457:

  Firewall security policies have the following conditions for traffic matching: (Choose three)

  A. Apply
  B. Source item security zone
  C. Source item IP address
  D. Message length
  A. Apply
  B. Source item security zone
  C. Source item IP address

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  Explanation

• Question 458:

  You are now troubleshooting a LAN and suspect that the error is due to a mismatch in the work mode. Which switch interface errors indicate that the 10/100/1000 IEEE Gigabit interface operating mode does not match? (Choose five)

  A. Alignment error
  B. FCS error
  C. Super small frame
  D. Excess conflict
  E. Late conflicts Correct Answer:Explanation:
  A. Alignment error
  B. FCS error
  C. Super small frame
  D. Excess conflict
  E. Late conflicts Correct Answer:Explanation:

• Question 459:

  Which of the following link types may appear in OSPF Router-LSAs? (Choose three)

  A. TransNet
  B. P-2-P
  C. Vlink
  D. StubNet
  B. P-2-P
  C. Vlink
  D. StubNet

• Question 460:

  Which of the following description about Filter-Policy is correct?

  A. With Filter-Policy, on ASBR in OSPF, you can filter the generation of type 5 LSA and type 7 LSA.
  B. Prefix lists can be used to filter both routes and packets.
  C. Filter-policy filters the link-state information received or published, and can modify the properties of route entries.
  D. When using a prefix list to filter routes, the table entry ip-prefix 1 deny 0000 0 less-equal 32 matches only the default route.
  A. With Filter-Policy, on ASBR in OSPF, you can filter the generation of type 5 LSA and type 7 LSA.

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