H12-821 Exam Details

  • Exam Code
    :H12-821
  • Exam Name
    :HCIP-Datacom-Core Technology V1.0
  • Certification
    :Huawei Certifications
  • Vendor
    :Huawei
  • Total Questions
    :312 Q&As
  • Last Updated
    :May 31, 2026

Huawei H12-821 Online Questions & Answers

  • Question 141:

    On an OSPF network, if a router functions as an ABR, the router must also be a BR.

    A. TRUE
    B. FALSE

  • Question 142:

    Which of the following messages are sent when BGP establishes peer relationships?

    A. Keepalive
    B. Hello
    C. Update
    D. Open

  • Question 143:

    CORRECT TEXT

    BGP routes have multiple path attributes. When a router advertises a BGP route to its peers, the route carries multiple path attributes. These attributes describe the characteristics of the BGP route and affect route selection in some scenarios.

    The attribute is Huawei-specific. It is valid only on the local device and is not transmitted to BGP peers. (Enter the attribute name in lowercase as it appears in the command output about the BGP routing table.)

  • Question 144:

    DRAG DROP

    The figure shows the VRRP status switchover events . Match these events with their sequence numbers.

    Select and Place:

  • Question 145:

    The traffic limiting policy feature only supports the number of connections initiated by the specified IP or the number of connections received.

    A. TRUE
    B. FALSE

  • Question 146:

    Which of the following statements regarding the display bgp routing-table command output is true?

    A. The route to the destination address 192.168.1.0 is learned through AS 200.
    B. The MED value of the route to the destination address 192.168.1.0 is 100.
    C. The route to the destination address 192.168.1.0 is not the optimal route in the BGP routing table.
    D. The route to the destination address 192.168.1.0 is injected into the BGP routing table using the network command.

  • Question 147:

    An enterprise network runs OSPF to implement network communication. Which of the following types of LSAs may be generated by an ABR?

    A. NSSA LSA
    B. AS External LSA
    C. Network Summary LSA
    D. ASBR Summary LSA

  • Question 148:

    In a broadcast network, IS-IS establishes a neighbor relationship through _______ handshakes. (Arabic numerals)

  • Question 149:

    STAs stay on different subnets before and after Layer 3 roaming. To enable the STAs to access the original network after roaming, network engineers need to configure user traffic to be forwarded to the original subnet over a CAPWAP tunnel.

    A. TRUE
    B. FALSE

  • Question 150:

    On an office network of an enterprise, OSPF is enabled on two directly connected routers. During adjacency establishment, the state machine stays in the 2-way state. Which of the following statements are not possible causes?

    A. Hello time values are different.
    B. Area IDs are different.
    C. Router IDs conflict.
    D. The N-bit and E-bit of Hello packets are the same.

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