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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 751:

    IPSGs can statically configure binding tables or form binding tables by using them with DHCP-Snooping

    A. True
    B. False

  • Question 752:

    Which of the following scenarios send gratuitous ARP messages? (Choose three)

    A. After the VRRP protocol master and standby role election is completed.
    B. The DHCP client receives an acknowledgment message from the server.
    C. When a new host configured with an IP address connects to the network.
    D. When a host connected to the switch issues a Ping message.

  • Question 753:

    Which of the following user logout modes are supported by 802.1X authentication? (Choose three)

    A. An authentication server forces a user to log out.
    B. A user logs out manually.
    C. An access device forces a user to log out.
    D. An accounting server forces a user to log out.

  • Question 754:

    By default, in a broadcast network running IS-IS, how many seconds does it take for the Designated Intermediate System (DIS) to send Complete Sequence Number Protocol (CSNP) packets?

    A. 33
    B. 40
    C. 30
    D. 10

  • Question 755:

    When the ABR is a Type 5/7 LSA switch router in the NSSA zone, the ABR can aggregate the Type 7 LSAs that are converted into Type 5 LSAs.

    A. True
    B. False

  • Question 756:

    Dual-bucket, two-speed is used in traffic governance. The number of tokens in the C bucket is TC, and the number of tokens in the P bucket is TP. When a message of length B arrives, which of the following descriptions is correct? (Choose three)

    A. If TP - B 0 and TC - B < 0, the message is marked green
    B. If TP - B < 0 and TC - B = 0, the message is marked red
    C. If TP - B 0 and TC - B < 0, the message is marked yellow
    D. If TP - B 0 and TC - B 0, the message is marked green

  • Question 757:

    Regarding BGP4+, which of the following statements are correct? (Choose two)

    A. BGP4+ carries the next-hop address of the route through the "Network Address of Next Hop" field in the MP_REACH_NLRI attribute
    B. BGP4+ carries the next-hop address of the IPv6 route through the NEXT_HOP attribute
    C. The NEXT_HOP attribute does not exist in BGP4+
    D. BGP4+ carries the prefix and mask length of the IPv6 route through the NLRI attribute

  • Question 758:

    Which of the following functions can be provided by iMaster NCE-Campus when it functions as a relay agent for authentication? (Choose three)

    A. User accounting
    B. User authentication
    C. User analysis
    D. Marketing

  • Question 759:

    In order to reduce the number of OSPF routes in some unscheduled areas, the OSPF protocol has developed special area functions. Which of the following characteristic descriptions of OSPF special areas is correct?

    A. ASBR-Summary-LSA is allowed to be published to NSSA regions.
    B. AS-External-LSA is allowed to be published to Stub regions.
    C. Any OSPF area can be configured as a special area.
    D. Special area routers cannot establish OSPF neighbor relationships with regular area routers.

  • Question 760:

    Refer to the following command output on router R3. Which of the following statements are correct? (Choose three)

    display interface Tunnel Tunnel0/0/0 current state : UP Line protocol current state : UP Last line protocol up time : 15:21:26 UTC-08:00 Description: HUAWEI, AR Series, Tunnel0/0/0 Interface Route Port, The Maximum Transmit Unit is 1500 Internet Address is 20.1.1.2/24 Encapsulation is TUNNEL, loopback not set Tunnel source 10.0.3.3 (LoopBack0), destination 10.0.1.1 Tunnel protocol/transport GRE/IP, key disabled keepalive disabled Checksumming of packets disabled

    A. The tunnel destination IP address is 10.0.1.1.
    B. The tunnel interface MTU is 1500 bytes.
    C. The tunnel interface IP address is 20.1.1.2/24.
    D. The tunnel source IP address is 10.0.1.1.

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