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

H12-891_V1.0 real exams

Exam Code: H12-891_V1.0

Exam Name: HCIE-Datacom V1.0

Updated: Sep 19, 2026

Q & A: 323 Questions and Answers

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Huawei H12-891_V1.0 Exam Syllabus Topics:

SectionObjectives
Topic 1: Routing and Switching Technologies- Switching technologies
  • 1. VLAN and STP
    • 2. Ethernet switching mechanisms
      - IP routing protocols
      • 1. IS-IS basics
        • 2. BGP
          • 3. OSPF
            Topic 2: Network Automation and Programmability- SDN and automation
            • 1. NETCONF/YANG basics
              • 2. Network automation tools
                Topic 3: Enterprise Network Architecture- Network design principles
                • 1. Hierarchical network architecture
                  • 2. Scalability and high availability design
                    Topic 4: Network Security and QoS- QoS mechanisms
                    • 1. Traffic classification and shaping
                      - Security mechanisms
                      • 1. Basic network security design
                        • 2. ACL and traffic control
                          Topic 5: Data Center and Virtualization Technologies- VXLAN and overlay networks
                          • 1. Data center network virtualization
                            Topic 6: WAN and VPN Technologies- MPLS fundamentals
                            • 1. MPLS LDP and forwarding
                              • 2. VPN technologies
                                Topic 7: IPv6 and Advanced IP Technologies- IPv6 deployment
                                • 1. IPv6 addressing and transition

                                  Huawei HCIE-Datacom V1.0 Sample Questions:

                                  Question #1
                                  Refer to the output information of a device below. According to the information, which of the following MPLS labels is carried in a data packet forwarded by the device to 10.0.1.1?

                                  A. 40200
                                  B. 36200
                                  C. 40100
                                  D. 36100


                                  Question #2
                                  In DU label advertisement mode, if the liberal label retention mode is used, the device reserves labels received from all the LDP peers regardless of whether the LDP peer is the optimal next hop for reaching the destination network.

                                  A. TRUE
                                  B. FALSE


                                  Question #3
                                  In 6PE networking, the shared explicit null label function can be enabled on routers to reduce the number of required MPLS labels. With this function, a router assigns a label with the value (enter only digits) to all 6PE routes.
                                  0In 6PE (IPv6 over MPLS for Provider Edge), the shared explicit null label value is 0. When this function is enabled, the PE router assigns label 0 (IPv4 Explicit Null) to all IPv6 routes, reducing the label space consumption. This is known as label 0 reuse for IPv6 forwarding over MPLS.Exact Extract - HCIE-Datacom IPv6/MPLS Integration Section:"To optimize label usage in 6PE deployments, shared explicit null label (label 0) can be assigned to all 6PE routes."


                                  Question #4
                                  In the LDP session establishment process, the initiator sends an Initialization message for parameter negotiation. Which message will be sent by the responder if it does not accept negotiation parameters?

                                  A. Error Notification Message
                                  B. Keepalive Message
                                  C. Initialization Message
                                  D. Hello Message


                                  Question #5
                                  In the firewall hot standby scenario, in which of the following conditions will the local device proactively send VGMP packets?

                                  A. Hot standby being enabled
                                  B. Link detection packet timeout
                                  C. Hot standby being disabled
                                  D. Priority increase


                                  Solutions:

                                  Question #1
                                  Correct Answer: D
                                  Question #2
                                  Correct Answer: A
                                  Question #3
                                  Correct Answer: Only visible for members
                                  Question #4
                                  Correct Answer: A
                                  Question #5
                                  Correct Answer: A

                                  Related Certifications
                                  Huawei Certified ICT Associate
                                  HCIA-Data Center
                                  Huawei Other Certification
                                  HCDP
                                  HCNP-Transmission
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