H12-891 Exam Details

  • Exam Code
    :H12-891
  • Exam Name
    :HCIE-Datacom V1.0
  • Certification
    :Huawei Certifications
  • Vendor
    :Huawei
  • Total Questions
    :923 Q&As
  • Last Updated
    :May 27, 2026

Huawei H12-891 Online Questions & Answers

  • Question 531:

    In the IS-IS broadcast network type, when establishing an adjacency relationship, if the router interface priority is set to 0, it will not participate in the DIS election.

    A. True
    B. False

  • Question 532:

    Router R1 and Router R2 run BGP. Both routers are in AS65234. The route for Router R2 exists in the BGP routing table of Router R1, but not in the IP routing table of Router R1. What causes this problem to occur?

    A. Synchronization is turned off
    B. The BGP neighbor relationship is Down
    C. Router R1 does not enable BGP multi-hop
    D. Routing is not optimal

  • Question 533:

    In the Huawei SD-WAN Solution, which of the following routing protocols is used to advertise VPN routes between CPEs?

    A. RIP
    B. OSPF
    C. IS-IS
    D. BGP

  • Question 534:

    Which of the following statements about BIER (Bit Index Explicit Replication) and PIM (Protocol Independent Multicast) are correct? (Choose three)

    A. On a BIER-based multicast network, packets sent by the multicast source must be encapsulated with the Bitstring field.
    B. On a PIM-based multicast network, an MDT covering all nodes that multicast traffic traverses needs to be established.
    C. On a BIER-based multicast network, an MDT covering all nodes that multicast traffic traverses does not need to be established.
    D. On a BIER-based multicast network, multicast users must send group join messages hop by hop.

  • Question 535:

    The message types of IS-IS mainly include SNP, IIH, and LSP.

    A. True
    B. False

  • Question 536:

    S-4S supports multi-instance and multi-process, that is, on an IS-IS router, multiple VPN instances can be configured to associate with multiple IS-IS processes. The following description of IS-IS multi-instance and multi-process, which are correct? (Choose three)

    A. If an IS-IS router creates multiple IS-IS processes, each process is independent of each other.
    B. One IS-IS process can only be associated with one VPN instance.
    C. One IS-IS process can be associated with several different VPN instances.
    D. One VPN instance can be associated with several different IS-IS processes.

  • Question 537:

    BGP routing policies can control the publication and acceptance of routes

    A. TRUE
    B. FLASE

  • Question 538:

    Portal authentication is recommended for scenarios with high mobility and numerous terminal types, such as shopping malls and supermarkets. MAC address authentication is recommended for dumb terminals that do not support Portal authentication, such as printers, fax machines, and IP phones.

    A. TRUE
    B. FALSE

  • Question 539:

    As shown in the following figure, R1, R2, and R3 establish a Level 2 neighbor relationship. Which of the IP routing table for R3 is correct? (Choose four)

    A. The 2::/64 route appears in the P routing table.
    B. The 2019::/64 route appears in the IP routing table.
    C. The 2020::/64 route appears in the IP routing table.
    D. The 2021::/64 route will appear in the IP routing table.

  • Question 540:

    DRAG DROP

    The Huawei SD-WAN solution defines three types of channels used for communication between the iMaster NCE controller and SD-WAN edge devices.

    Based on the diagram, drag each channel name to the correct callout number.

    Select and Place:

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