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100% Huawei H12-891_V1.0 Guaranteed Success With Testing Engine

Exam Code: H12-891_V1.0

Exam Name: HCIE-Datacom V1.0

Updated: Jun 12, 2026

Number: 323 Q&As with Testing Engine

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Huawei HCIE-Datacom V1.0 Sample Questions:

1. iMaster NCE-Campus restricts RESTful APIs. If a client sends a GET request that invokes a RESTful API to obtain site information from iMaster NCE-Campus, which of the following fields should be included in the request header?

A) ACCESS-TOKEN
B) X ACCESS TOKEN
C) ACCEPT-TOKEN
D) X-ACCEPT-TOKEN


2. Refer to the configuration in the figure. Which queue on R2 do packets of PC1 enter by default?

A) AF4
B) EF
C) AF3
D) AF2


3. OSPF is a mature protocol and is unlikely to have route computation errors in a regular networking environment under correct configurations. Which of the following statements are correct about the possible causes preventing an OSPF neighbor relationship from entering Full state?

A) A link works abnormally.
B) The router IDs of neighbors are the same.
C) The OSPF network types on both ends of the link are inconsistent.
D) The OSPF MTU values of interfaces on both ends of the link are different.


4. Which of the following statements is incorrect about a BGP/MPLS IP VPN?

A) Ps only need to provide basic MPLS forwarding capabilities and do not need to maintain VPN-related information.
B) In most cases, CEs are unaware of VPNs and do not need to support MPLS or MP-BGP.
C) Inter-site communication can be implemented through VPN. A site can only belong to only one VPN.
D) A BGP/MPLS IP VPN consists of customer edges (CEs), provider edges (PEs), and providers (Ps). PEs and Ps are carrier devices, whereas CEs are BGP/MPLS IP VPN customer devices.


5. NETCONF uses an XML-based encoding format. NETCONF uses text files to represent complex hierarchical data. Which of the following statements are correct about the following XML file?
<?xml version="1.0" encoding="UTF-8"?>
<note>
<to>Learners</to>
<from>Huawei</from>
<heading>Reminder</heading>
<body>Don't forget Reading!</body>
</note>

A) <?: indicates the start of an instruction.
B) /: indicates the end of the current tag.
C) encoding: indicates the character set encoding format. Currently, only UTF-8 encoding is supported.
D) ?>: indicates the end of an instruction.


Solutions:

Question # 1
Answer: A
Question # 2
Answer: C
Question # 3
Answer: A,B,C,D
Question # 4
Answer: C
Question # 5
Answer: A,B,C,D

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