Huawei H12-891 Online Practice Questions and Exam Preparation

Huawei H12-891 Online Questions & Answers

• Question 811:

  During IS-IS broadcast network database synchronization, which of the following statements is correct?

  

  A. R2, as DIS, sends CSNP periodically.
  B. R2, as DIS, has a Hello timer that is 3 times that of a normal router.
  C. R2, as DIS, does not receive PSNPs from other routers.
  D. R1 and R3 maintain database consistency by periodically sending PSNP requests.
  A. R2, as DIS, sends CSNP periodically.

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• Question 812:

  FILL IN THE BLANK

  When configuring a static VXLAN tunnel, you need to manually configure the _____, VTEP IP address, and ingress replication list. (Enter only uppercase letters.)

  VNI

• Question 813:

  When you configure a virtualized campus network on iMaster NCE-Campus and enable external networks to connect to the Internet, iMaster NCE-Campus will automatically deliver a specific route to direct traffic to the corresponding external network.

  A. TRUE
  B. FALSE
  A. TRUE

• Question 814:

  Configure the ipv6 preference under the IS-IS protocol view. The role of this command is to configure the priority of the IPv6 routes generated by the IS-IS protocol.

  A. TRUE
  B. FALSE
  A. TRUE

• Question 815:

  OSPFv2 runs on IPv4 networks as an IGP; OSPFv3 runs on IPv6 networks. OSPFv3 and OSPFv2 have the same message types, including Hello messages, DD messages, LSR messages, LSU messages, and LSAck messages.

  Which of the following statements about OSPF is correct?

  A. The Hello packet of OSPFv3 carries the IPv6 address prefix of the router interface
  B. OSPFv3 uses the authentication field of the packet header to complete packet authentication
  C. OSPFv3 uses the link-local address as the source address for sending packets, which can be forwarded outside the range of the originating link
  D. OSPFv3 sends packets using the IPv6 multicast addresses FF02::5 and FF02::6
  D. OSPFv3 sends packets using the IPv6 multicast addresses FF02::5 and FF02::6

• Question 816:

  

  Refer to the IGMP configuration of the interface on the router RTA as follows, which of the following information about the operation of RTA is incorrect?

  A. The packet interval for a particular group query is 60 seconds.
  B. The interface IP address is 192.168.1.1.
  C. The maximum response time for query messages is 10 seconds.
  D. The IGMP protocol version is 2.
  A. The packet interval for a particular group query is 60 seconds.

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  Explanation

• Question 817:

  DRAG DROP

  Huawei CloudCampus Solution supports multiple application scenarios, and iMaster NCE-Campus provides different open APIs for each of these scenarios. Match each application scenario with the corresponding open API provided by iMaster NCE-Campus.

  Select and Place:

  

  

• Question 818:

  In route-policy, what are the BGP attributes that can be used in the apply clause? (Choose three)

  A. AS-Path
  B. MED
  C. Local-Preference
  D. None
  A. AS-Path
  B. MED
  C. Local-Preference

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• Question 819:

  In an MPLS VPN network, when a packet enters the Internet and is forwarded, it is encapsulated with two layers of MPLS labels. Which of the following describes the correct processing of the packet? (Choose three)

  A. The penultimate hop device receives packets with an outer label of 3.
  B. The egress PE device receives an unlabeled IP packet.
  C. The egress PE device correctly routes the packets to the appropriate VPN.
  D. Based on the inner label, the penultimate hop device pops the outer label and forwards the packet to the egress PE device.
  A. The penultimate hop device receives packets with an outer label of 3.
  C. The egress PE device correctly routes the packets to the appropriate VPN.
  D. Based on the inner label, the penultimate hop device pops the outer label and forwards the packet to the egress PE device.

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  Explanation

• Question 820:

  You write the following Python code to invoke a RESTful API to obtain the token ID of iMaster NCE:

  import requests

  response = requests.get("https://139.9.213.72")

  print(response.json())

  The following error is returned:

  requests.exceptions.SSLError: HTTPSConnectionPool(host='139.9.213.72', port=18002):

  Max retries exceeded with url: /controller/v2/tokens

  (Caused by SSLError(CertificateError("hostname '139.9.213.72' doesn't match 'devzone.huawei.com'")))

  Which of the following statements are correct? (Choose three)

  A. The client does not trust the SSL certificate of the server.
  B. The SSL certificate verification fails.
  C. The code can be modified as follows: import requests response = requests.get("https://139.9.213.72", verify=False) print(response.json())
  D. The code can be modified as follows: import requests response = requests.post("http://139.9.213.72", verify=False) print(response.json())
  A. The client does not trust the SSL certificate of the server.
  B. The SSL certificate verification fails.
  C. The code can be modified as follows: import requests response = requests.get("https://139.9.213.72", verify=False) print(response.json())