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Huawei H12-831-ENU Exam Syllabus Topics:

Huawei HCIP-Datacom Sample Questions:

1. Regarding the description of the encapsulation format of labels in MPLS, which of the following is correct? (Multiple choice)

A) For the packets of Ethernet and PPP, the label stack is located between the Layer 2 header and the data like the 'cushion layer': when there is a VLAN tag, the MPLS header is placed between the Ethernet header and the VLAN tag
B) S field in the label is 1bit
C) The total length of a single MPLS label is 4 bytes (32bits)
D) The TTL field in the label and the TTL (Time To Live) in the IP packet.

2. A campus deploys both IPv4 and IPv6 networks for service testing, and runs IS-IS to achieve network interconnection. The IS-IS routing protocol has good scalability and is widely used in the existing network. Which of the following statements is true about IS-IS scalability? (Multiple choice)

A) IS-IS uses the TLV structure to construct packets, making IS-IS more flexible and extensible
B) IS-IS needs to add TLV to carry IPv6 address information in order to support IPv6
C) For IS-IS, adding new features only needs to add new TLVs
D) NLPID is a new TLV added by IS-IS to support IPv6

3. What traffic can port mirroring mirror? (Multiple choice)

A) Packets accepted by the interface
B) Messages sent and received by the port
C) Packets discarded by the port
D) The message sent by the end

4. Which of the following functional descriptions about eSight physical topology monitoring are correct? (Multiple choice)

A) The entrance of the entire network monitoring realizes efficient operation and maintenance for customers
B) Graphically display the layout and status of network elements, subnets, and links
C) Accurate and visualized monitoring of the network operation status of the entire network
D) The system shows the network structure of the whole network and the relationship between network entities in business

5. In OSPFv3, what is the flooding range of the LSA in the entire autonomous system?

A) Intra-Area-Prefix-LSA
B) Link-LSA
C) Inter-Area-Prefix-LSA
D) As-external-LSA

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