Huawei H12-891_V1.0 : HCIE-Datacom V1.0

  • Exam Code: H12-891_V1.0
  • Exam Name: HCIE-Datacom V1.0
  • Updated: Oct 24, 2026
  • Q & A: 323 Questions and Answers

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Huawei H12-891_V1.0 Exam Syllabus Topics:

SectionWeightObjectives
Topic 1: Campus Network Planning and Deployment23%- Underlay Network
  • 1. Physical Layer Design
  • 2. IP Address Planning
- Campus Network Architecture
  • 1. Hierarchical Design
  • 2. Spine-Leaf Architecture
- Overlay Network (VXLAN)
  • 1. VXLAN Gateway
  • 2. BGP EVPN
- Network Services
  • 1. Network Security
  • 2. WLAN
  • 3. QoS
Topic 2: WAN Interconnection Network Planning and Deployment8%- SD-WAN
  • 1. Architecture
  • 2. Orchestrator
- Inter-AS VPN
  • 1. Option C
  • 2. Option B
  • 3. Option A
- MPLS VPN
  • 1. Full-Mesh
  • 2. Hub-Spoke
Topic 3: Network Automation17%- iMaster NCE
  • 1. Intent-Driven Networking
- Automation Technologies
  • 1. RESTful API
  • 2. Python Scripting
  • 3. NETCONF/YANG
  • 4. Ansible
- NCE (Network Cloud Engine)
  • 1. Deployment
  • 2. Architecture
Topic 4: Advanced Routing and Switching Technology37%- Ethernet Switching
  • 1. Stack & CSS
  • 2. VXLAN
  • 3. STP/RSTP/MSTP
  • 4. VLAN
- IS-IS
  • 1. Configurations and Troubleshooting
  • 2. Route Leaking
  • 3. Addressing
  • 4. Basic Concepts
  • 5. Network Types
- Route Control
  • 1. IP Prefix List
  • 2. Route Filtering
  • 3. Route-policy
  • 4. ACL
- BGP
  • 1. Configurations and Troubleshooting
  • 2. Basic Concepts
  • 3. Routing Policies
  • 4. Route Aggregation
  • 5. Path Selection
- MPLS
  • 1. Configurations
  • 2. LDP
  • 3. MPLS VPN
  • 4. Basic Concepts
  • 5. MPLS TE
- OSPF
  • 1. Route Calculation
  • 2. Configurations and Troubleshooting
  • 3. LSA Types
  • 4. Area Types
  • 5. Basic Concepts
Topic 5: Bearer WAN Planning and Deployment15%- Traffic Engineering
  • 1. Flex-Algo
  • 2. SR-TE
  • 3. RSVP-TE
- SR (Segment Routing)
  • 1. SRv6
  • 2. SR-MPLS
- VPN Services
  • 1. EVPN
  • 2. L3VPN

Huawei HCIE-Datacom V1.0 Sample Questions:

Question #1

On a VXLAN-based virtualized campus network, BGP EVPN can be used as the control plane protocol. Which of the following EVPN route types are not used in the virtualized campus network scenario?

  • A. Type 3
  • B. Type 2
  • C. Type 4
  • D. Type 1
Reveal Solution  Discussion  0

Correct Answer: C  🗳️

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Question #2

Huawei Open Programmability System (OPS) uses standard HTTP methods to access managed objects and manage network devices.
Which of the following HTTP methods is used to configure the value of a network device's managed object?

  • A. PATCH
  • B. GET
  • C. POST
  • D. PUT
Reveal Solution  Discussion  0

Correct Answer: A  🗳️

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Question #3

Huawei Open Programmability System (OPS) uses standard HTTP methods to access managed objects to manage network devices. Which of the following HTTP methods is used to configure the value of a network device's managed object?

  • A. PATCH
  • B. GET
  • C. POST
  • D. PUT
Reveal Solution  Discussion  0

Correct Answer: D  🗳️

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Question #4

Before connecting an SSH client to an SSH server in public key authentication mode, a client needs to create a key pair. Which of the following commands is used to create a DSS key pair on the client using Git Bash?

  • A. ssh-keygen -t dss
  • B. ssh-keygen -t rsa
  • C. ssh-keygen -t ecc
  • D. ssh-keygen -t dsa
Reveal Solution  Discussion  0

Correct Answer: D  🗳️

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Question #5

This figure shows an SRv6 (Segment Routing over IPv6) packet. If the Destination Address field in the IPv6 basic header is FC04::4, the value of the SL (Segment Left) field in the SRv6 header should be ____. (Enter only digits.)

Reveal Solution  Discussion  0

Correct Answer:

1
Explanation:
Comprehensive and Detailed In-Depth 1. Understanding SRv6 (Segment Routing over IPv6):SRv6 uses the IPv6 header along with an additional SRH (Segment Routing Header) to implement segment routing within an IPv6 network. The SRH contains:Segment List (SL): A list of IPv6 addresses (segments) to traverse.SL (Segments Left): An integer that indicates the number of segments yet to be visited.Active Segment: The next IPv6 address in the segment list, stored in the Destination Address field of the IPv6 header.2. Analyzing the Given Scenario:The segment list (SL) in the SRH header shows:FC04::400FC04::4FC03::3The segment list is processed in reverse order (from bottom to top).SL (Segments Left) indicates the index of the active segment in the list.The Destination Address in the IPv6 header is currently FC04::4, indicating that the active segment is the second element in the list.3. Determining the Value of SL:The indexing in the segment list starts from 0.Since FC04::4 is the second segment (from the bottom), the value of SL will be 1.This means that 1 segment is left to be processed after the current one (FC04::4).Once the packet reaches FC04::4, the SL value will decrement to 0, and the next segment (FC03::3) will be processed.4. Why the Answer is 1:The SL value decreases as segments are processed.As the current active segment is the second in the list (from the bottom), the SL value is 1.
Reference:
Huawei HCIE-Datacom V1.0 Training Materials
Huawei Official Documentation: SRv6 Configuration Guide
RFC 8754 - IPv6 Segment Routing Header (SRH)
HCIE-Datacom Knowledge Base: Segment Routing over IPv6 (SRv6)

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