1. Home
  2. Huawei
  3. H12-891

Huawei H12-891 Online Practice Questions and Exam Preparation

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 481:

    Level-1-2 IS transmits Level-2 LSP to the Level-1 area if the AT location 1 in Level-2 LSP is delivered. It means that the Level-1 LS in the area can be accessed from the outer area through Level-1-2 IS.

    A. True
    B. False

  • Question 482:

    As shown in the topology, EBGP is running between AS100, AS200, AS300, and AS400, and the neighbor relationships are established accordingly. When AS400 receives a BGP route for the 1.1.1.1/32 network segment originating from AS100, which of the following AS_Path sequences is correct?

    A. 100, 200, 300
    B. 400, 300, 200, 100
    C. 100, 200, 300, 400
    D. 300, 200, 100

  • Question 483:

    BFD can implement millisecond-level link status detection.

    A. TRUE
    B. FALSE

  • Question 484:

    Two VTEPs in a VXLAN can identify a VXLAN tunnel, and this VXLAN tunnel between the VTEPs will be encapsulated by two NDEs and is common to all VNIs.

    A. True
    B. False

  • Question 485:

    The multicast protocol that can generate multicast distribution trees is?

    A. IGMPv2
    B. BGP
    C. OSPF
    D. PIMv2

  • Question 486:

    Which of the following statements about the Security Association (SA) in IPSec is incorrect?

    A. SA is uniquely identified by a triple that includes the Security Parameter Index (Security Parameter Index), the source IP address, and the Security Protocol Number (AH/ESP) used.
    B. Use the display ipsec command to view information such as the encryption method used with another IPSEC peer, the traffic of interest, and so on.
    C. IPSec only supports encrypting data using the pair encryption algorithm.
    D. IPSec peers must have a two-way SA to establish an IPSec VPN connection.

  • Question 487:

    What commands are related to BGP route reflectors? (Choose three)

    A. reflect between-clients
    B. group 1 internal
    C. peer reflect-client
    D. reflector cluster-id

  • Question 488:

    YANG is a data modeling language for the definition of data sent over network management protocols such as NETCONF. Which of the following are basic YANG data models? (Choose two)

    A. Set node
    B. Leaf node
    C. List node
    D. Tree node

  • Question 489:

    Router HW has OSPF enabled and functions as an ABR (Area Border Router) with the abr-summary command configured. Which type of LSA (Link-State Advertisement) will be aggregated? (Choose two)

    A. Type 1 LSA
    B. Type 2 LSA
    C. Type 3 LSA
    D. Type 4 LSA
    E. Type 5 LSA

  • Question 490:

    OSPFv2 is an IGP running on an IPv4 network; OSPFv3 is an IGP running on an IPv6 network. OSPFv3 has LSA types similar to OSPFv2, but their functions differ slightly. OSPFv3 LSA types do not include which of the following?

    A. Router-LSA
    B. Network-LSA
    C. ASBR-Summary-LSA
    D. AS-External-LSA

Related Exams:

Tips on How to Prepare for the Exams

Nowadays, the certification exams become more and more important and required by more and more enterprises when applying for a job. But how to prepare for the exam effectively? How to prepare for the exam in a short time with less efforts? How to get a ideal result and how to find the most reliable resources? Here on Vcedump.com, you will find all the answers. Vcedump.com provide not only Huawei exam questions, answers and explanations but also complete assistance on your exam preparation and certification application. If you are confused on your H12-891 exam preparations and Huawei certification application, do not hesitate to visit our Vcedump.com to find your solutions here.