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 101:

    In the SNMP management model, which of the following elements defines the attributes of a managed device?

    A. MIB
    B. Agent
    C. Managed Object
    D. NMS

  • Question 102:

    ASBRs cannot exist in an OSPF stub area.

    A. TRUE
    B. FALSE

  • Question 103:

    This configuration is part of RTA configuration. Which of the following statements regarding the configuration are true?

    [RTA] ospf 100 [RTA-ospf-100]silent-interface GigabitEthernet 1/0/0

    A. RTA cannot establish a neighbor relationship with the neighbor that this interface is directly connected to.
    B. GigabitEthernet 1/0/0 is prohibited from sending OSPF packets.
    C. Direct routes of GigabitEthernet 1/0/0 can still be advertised.
    D. This interface cannot send Hello packets.

  • Question 104:

    GRE is a VPN technology that can implement packet transmission over heterogeneous networks. Which of the following statements are true about GRE?

    A. GRE is a Layer 2 VPN encapsulation technology.
    B. GRE enables encapsulated data packets to be transmitted over another network layer protocol, but cannot encapsulate multicast data.
    C. GRE tunnels can work with IPsec to ensure the security of multicast services such as voice and video.
    D. GRE tunnels can extend the working range of network protocols with hop limits.

  • Question 105:

    When multiple access channels are set for the same access requirement, the insecure access channels are not used and secure access channels are selected in normal cases. Which of the following are secure access channels?

    A. HTTPS
    B. Telnet
    C. SNMPv2
    D. SFTP

  • Question 106:

    BGP is generally applied to complex networks where routes change frequently. Frequent route flapping consumes a large number of bandwidth and CPU resources, and even affects the normal operation of the network. This is an unavoidable problem that cannot be solved in BGP.

    A. TRUE
    B. FALSE

  • Question 107:

    PBR is a mechanism for selecting routes based on user-defined policies. There are two types of PBR:

    interface-based PBR and local PBR.

    Which of the following statements is false about these two types of PBR?

    A. Interface-based PBR takes effect only for forwarded packets.
    B. Local PBR takes effect only for locally originated packets.
    C. Interface-based PBR is configured on an interface and takes effect only for incoming packets on the interface.
    D. Local PBR is configured in the protocol view.

  • Question 108:

    Preferences of routing protocols determine the sequence In which a router selects a route among routes to the same destination /earned through different routing protocols.

    A. TRUE
    B. FALSE

  • Question 109:

    DRAG DROP

    To enable PC1 to access PC2 using the IP address of the firewall's GE0/0/2, you need to configure NAPT for source address translation. In the following figure, fill in the blank to complete the command.

    Select and Place:

  • Question 110:

    Which of the following is used as the destination port for single-hop BFD?

    A. UDP port 3784
    B. UDP port 4784
    C. TCP port 3784
    D. TCP port 4784

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