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

  • Exam Code: H12-891_V1.0-ENU
  • Exam Name: HCIE-Datacom V1.0
  • Updated: Oct 26, 2026
  • Q&As: 611 Questions and Answers

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Huawei H12-891_V1.0-ENU Exam Syllabus Topics:

SectionWeightObjectives
Topic 1: Bearer WAN Planning and Deployment15%- Deployment and Optimization
  • 1. Planning Principles
    • 2. Performance Optimization
      - Bearer WAN Architecture
      • 1. Carrier-grade Network Requirements
        • 2. CloudWAN Solution Architecture
          - CloudWAN Technologies
          • 1. SRv6
            • 2. High Reliability Design
              • 3. Network Slicing
                Topic 2: Advanced Routing and Switching Technology37%- Advanced Switching Technologies
                • 1. VXLAN and EVPN
                  • 2. Multicast Protocols
                    • 3. High Availability Technologies
                      - Advanced Routing Protocols
                      • 1. IS-IS
                        • 2. OSPF and OSPFv3
                          • 3. BGP
                            • 4. IPv6 Transition Technologies
                              - QoS and Security
                              • 1. Advanced Security Technologies
                                • 2. QoS Mechanisms
                                  - MPLS and VPN Technologies
                                  • 1. MPLS L3VPN/L2VPN
                                    • 2. MPLS Basics
                                      • 3. Traffic Engineering
                                        Topic 3: Campus Network Planning and Deployment23%- CloudCampus Deployment
                                        • 1. Service Provisioning
                                          • 2. Controller and Device Management
                                            • 3. O&M and Troubleshooting
                                              - Campus Network Design
                                              • 1. WLAN Integration
                                                • 2. Network Segmentation and Isolation
                                                  • 3. Access, Aggregation and Core Layer Design
                                                    - Campus Network Architecture
                                                    • 1. Traditional Campus Architecture
                                                      • 2. CloudCampus Solution Architecture
                                                        Topic 4: WAN Interconnection Network Planning and Deployment8%- SD-WAN Solution
                                                        • 1. Policy and Traffic Steering
                                                          • 2. Huawei SD-WAN Components
                                                            • 3. Overlay and Underlay Design
                                                              - WAN Architecture
                                                              • 1. SD-WAN Architecture
                                                                • 2. Traditional WAN Technologies
                                                                  Topic 5: Network Automation17%- Huawei Automation Tools
                                                                  • 1. iMaster NCE
                                                                    • 2. Scripting and Development
                                                                      - Automation Basics
                                                                      • 1. RESTCONF and gRPC
                                                                        • 2. YANG and NETCONF
                                                                          • 3. Network Management Protocols
                                                                            - Telemetry and Monitoring
                                                                            • 1. Telemetry Principles
                                                                              • 2. Real-time Data Collection

                                                                                Huawei HCIE-Datacom V1.0 Sample Questions:

                                                                                Question #1

                                                                                The following is correct about the LSA of OSPFv3

                                                                                • A. Inter-Area PrefirLSA also contains LinkLocal Information
                                                                                • B. The Link State ID of inter-area prefix-SA, which contains prefix information
                                                                                • C. When the Referenced Link State Type-2 of the Intra-AreaPrefixLSA, referenced Link State ID Contains the interface ID of the DR
                                                                                • D. Router-LSA and Network-LSA do not contain routing information
                                                                                Reveal Solution  Discussion  0

                                                                                Correct Answer: C,D  🗳️

                                                                                Question #2

                                                                                RTA is the source DR router, RTB is the RP router, and the multicast source sends multicast data to the RTA, but the PIM is not visible on the RTB Register the multicast source to which the message is registered, then the possible causes are?

                                                                                • A. The RP elected by RTA is not an RTB
                                                                                • B. RTB to RTA has no unicast routing, causing the RTB to fail RPF checks for the source
                                                                                • C. The multicast network dynamically elects the RP instead RTA failed RPF check for BSR
                                                                                • D. Multicast network statically configures RP, while RTA router does not statically configure RP
                                                                                Reveal Solution  Discussion  0

                                                                                Correct Answer: A,B,C,D  🗳️

                                                                                Question #3

                                                                                There are two Communily filters: ip comimuniy-lite lpemit 101201 ip community fiter 2permit101 ip commmuriyfilter 2pemit21 Regarding the above ommuniyfiter, the correct description is? (Multiple choice questions).

                                                                                • A. As long as the group attribute value carried in the BGP route contains 100:1 or 200:1, or both, the BGP route matches community-filter2
                                                                                • B. As long as the group attribute value carried in the BGP route contains 100:1 or 200:1, or both, the BGP route matches the community-filterl
                                                                                • C. A BGP route matches community-filter2 only if the group attribute values carried in the BGP route include 100:1 and 200:1
                                                                                • D. The BGP route matches community-filter 1 only if the community attribute values carried in the BGP route contain 100:1 and 200:1
                                                                                Reveal Solution  Discussion  0

                                                                                Correct Answer: A,D  🗳️

                                                                                Question #4

                                                                                The following statement about isis a route leak of ISIS is correct?

                                                                                • A. Route disclosure for ISIS is turned on by default.
                                                                                • B. Route leaks for ISIS can only be applied to IPv4 environments.
                                                                                • C. Route leaks for ISIS must be deployed on Level-1 routers
                                                                                • D. Route disclosure for ISIS avoids suboptimal paths.
                                                                                Reveal Solution  Discussion  0

                                                                                Correct Answer: D  🗳️

                                                                                Question #5

                                                                                What descriptions of the OSPF protocol are correct?

                                                                                • A. AS-External-LSA describes the router's path to ASBR
                                                                                • B. The cost value of the second type of external route is only the AS external cost value, ignoring the AS internal cost value
                                                                                • C. AS-External-LSA does not belong in any region
                                                                                • D. AS-External-LSA describes the path to the as outside of the route, and the scope of the flood is the AS outside
                                                                                Reveal Solution  Discussion  0

                                                                                Correct Answer: B,C  🗳️

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