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

  • Exam Code: H12-891_V1.0-ENU
  • Exam Name: HCIE-Datacom V1.0
  • Updated: Sep 13, 2026   Q&As: 611 Questions and Answers

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Huawei H12-891_V1.0-ENU Exam Syllabus Topics:
SectionWeightObjectives
WAN Interconnection Network Planning and Deployment8%- WAN Architecture
  • 1. Traditional WAN Technologies
    • 2. SD-WAN Architecture
      - SD-WAN Solution
      • 1. Huawei SD-WAN Components
        • 2. Policy and Traffic Steering
          • 3. Overlay and Underlay Design
            Advanced Routing and Switching Technology37%- QoS and Security
            • 1. Advanced Security Technologies
              • 2. QoS Mechanisms
                - Advanced Switching Technologies
                • 1. High Availability Technologies
                  • 2. VXLAN and EVPN
                    • 3. Multicast Protocols
                      - MPLS and VPN Technologies
                      • 1. Traffic Engineering
                        • 2. MPLS Basics
                          • 3. MPLS L3VPN/L2VPN
                            - Advanced Routing Protocols
                            • 1. BGP
                              • 2. IPv6 Transition Technologies
                                • 3. OSPF and OSPFv3
                                  • 4. IS-IS
                                    Network Automation17%- Huawei Automation Tools
                                    • 1. Scripting and Development
                                      • 2. iMaster NCE
                                        - Telemetry and Monitoring
                                        • 1. Telemetry Principles
                                          • 2. Real-time Data Collection
                                            - Automation Basics
                                            • 1. RESTCONF and gRPC
                                              • 2. YANG and NETCONF
                                                • 3. Network Management Protocols
                                                  Campus Network Planning and Deployment23%- Campus Network Design
                                                  • 1. Access, Aggregation and Core Layer Design
                                                    • 2. WLAN Integration
                                                      • 3. Network Segmentation and Isolation
                                                        - Campus Network Architecture
                                                        • 1. CloudCampus Solution Architecture
                                                          • 2. Traditional Campus Architecture
                                                            - CloudCampus Deployment
                                                            • 1. Controller and Device Management
                                                              • 2. Service Provisioning
                                                                • 3. O&M and Troubleshooting
                                                                  Bearer WAN Planning and Deployment15%- Deployment and Optimization
                                                                  • 1. Performance Optimization
                                                                    • 2. Planning Principles
                                                                      - Bearer WAN Architecture
                                                                      • 1. CloudWAN Solution Architecture
                                                                        • 2. Carrier-grade Network Requirements
                                                                          - CloudWAN Technologies
                                                                          • 1. SRv6
                                                                            • 2. Network Slicing
                                                                              • 3. High Reliability Design
                                                                                Huawei HCIE-Datacom V1.0 Sample Questions:
                                                                                Question #1

                                                                                LDP messages are exchanged between LDLRs running the LDP protocol, and LDP messages can be divided into four types according to function, which of the following is not an LDP message type?

                                                                                • A. Discover message
                                                                                • B. Advertisement message
                                                                                • C. Conversation message
                                                                                • D. Label Exchange Information
                                                                                Reveal Solution  Discussion  0

                                                                                Correct Answer: D  🗳️

                                                                                Question #2

                                                                                In an MPLS IBGP VPN environment, if tags are distributed only through BGP, LDP, the MPLS tags for a message can be up to two layers of tags.

                                                                                • A. True
                                                                                • B. False
                                                                                Reveal Solution  Discussion  0

                                                                                Correct Answer: A  🗳️

                                                                                Question #3

                                                                                What are the reasons why the BGP connection is down after it is successfully established? (Single choice questions) Single choice

                                                                                • A. After the BGP connection is established, the keepalive message is not received within the negotiated hold time time.
                                                                                • B. Open message negotiation failed.
                                                                                • C. The mandatory attribute in the route update packet is missing.
                                                                                • D. The wrong BGP packet was received.
                                                                                Reveal Solution  Discussion  0

                                                                                Correct Answer: B  🗳️

                                                                                Question #4

                                                                                The correct statement about the difference between OSPFv2 and OSPFv3 is? Multi-select

                                                                                • A. BOTH OSPFv2 and OSPFv3 support interface authentication. And OSPFv3 authentication is still based on the fields in the ospf message header
                                                                                • B. OSPFv3 is similar to OSPFv2 in that it uses a multicast address as the OSPF message destination address
                                                                                • C. The same type of message exists in OSPFv2, OSPFv3: Hello, DD, LSR, LSU, LSAack,. Their message format is the same
                                                                                • D. OSPFv2 has the protocol number 89 in the IPv4 packet header, OSPFv 3. The next number in the IPv6 message header is 89
                                                                                Reveal Solution  Discussion  0

                                                                                Correct Answer: B,C,D  🗳️

                                                                                Question #5

                                                                                Regarding the mpLS handling mode of TTL, is the following description correct?

                                                                                • A. In MPLSVPI, if you need to hide the structure of the MPLS backbone network, you can use Uniform mode on Ingress for private network messages.
                                                                                • B. Pipe mode. When an IP message passes through the MPLS network, the IPTTL minus 1 is mapped to the WLSTTL field at the incoming node.
                                                                                • C. The TTL in the MPLS label has the same meaning as the TTL field in the head. TTL prevents mpLS networks from developing bad routing.
                                                                                • D. Unifore style, when an IP packet passes through the MPLS network, the IPTTL of the incoming node is minus l. The MPLS TTL field is a fixed value.
                                                                                Reveal Solution  Discussion  0

                                                                                Correct Answer: C  🗳️

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