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 131:

    Which of the following methods is usually used by a network administrator to configure a newly purchased device for the first time?

    A. Telnet
    B. SNMP
    C. Login through the Console port
    D. FTP

  • Question 132:

    A campus deploys OSPF to implement network interworking, and GE0/0/2 of R3 also enables OSPF. Among them, Area1 is deployed as an NSSA area, and the addresses of each device are shown in the figure. An engineer configures a static route on R3 to access the loopback interface address of R4, and imports the static route into the OSPF process. At this time, in the Type5 LSA received by R1, the forwarding address (FA) is _____. (Note: Please fill in the IP address without masking)

  • Question 133:

    A firewall receives a packet that PC1 sends to PC2. Which of the following statements are true?

    A. The packet does not match any security policy.
    B. The packet matches security policy rule 1, and the firewall forwards the packet.
    C. No source or destination security zone is specified in security policy rule 2, indicating that any security zone is a match.
    D. The packet matches security policy rule 1, and the firewall discards the packet.

  • Question 134:

    Both MQC and PBR can be applied on device interfaces to filter received and sent packets or control packet forwarding paths.

    A. TRUE
    B. FALSE

  • Question 135:

    On an OSPF network, interfaces are classified into four types based on link layer protocols. Which of the following types can interfaces on an IS-IS network be classified into based on physical links?

    A. P2P
    B. Broadcast
    C. P2MP
    D. NBMA

  • Question 136:

    Which of the following routing protocols support the default route through command configuration?

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

  • Question 137:

    On the OSPF network shown in the figure, R1, R2, and R3 run OSPF, and R1 advertises four VPN routes to OSPF. A filter-policy needs to achieve the following goal: R1's and R3's routing tables contain the routes to 192.168.3.0/24, but R2's routing table does not. Which of the following filter-policies cannot meet this requirement?

    A. A filter-policy on R2 for filtering received routes
    B. A filter-policy on R2 for filtering the routes to be advertised
    C. A filter-policy on R1 for filtering the routes to be imported
    D. A filter-policy on R1 for filtering the imported routes to be advertised

  • Question 138:

    The following description about Link ID, Data, Type and Metirc in Router-L SA is correct? (Multiple choice)

    A. Data is used to describe the additional information of this connection, and the information referred to by different connection types is also different
    B. Metric describes the cost of this connection
    C. Type indicates the type of connection
    D. Link ID indicates the local identification of this connection, and the meaning of the same connection type Link ID is also different

  • Question 139:

    A wide area network (WAN) is a remote network that connects local area networks (LANs) or metropolitan area networks (MANs) in different areas for communication purposes. It is typically used to interconnect campus networks or data center networks.

    A. TRUE
    B. FALSE

  • Question 140:

    To overcome the disadvantages of STP RSTP , changes the format of configuration BPDUs . Which of the following fields in STP BPDUs is used to specify the port role ?

    A. Flags
    B. BPDU Type
    C. PID
    D. PVI

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