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Huawei H12-261-ENU : HCIE-Routing&Switching (Written)(Huawei Certified ICT Expert-Routing & Switching)

H12-261-ENU

Exam Code: H12-261-ENU

Exam Name: HCIE-Routing&Switching (Written)(Huawei Certified ICT Expert-Routing & Switching)

Updated: Oct 16, 2026

Q & A: 525 Questions and Answers

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Huawei H12-261-ENU Exam Syllabus Topics:

SectionObjectives
Topic 1: Advanced IP Network Fundamentals- Network convergence principles
  • 1. Control plane vs data plane concepts
    • 2. Scalability considerations
      - IPv4/IPv6 addressing and design
      • 1. IPv6 deployment scenarios
        • 2. Address planning and subnetting
          Topic 2: Network Troubleshooting and Optimization- Performance optimization
          • 1. Routing optimization strategies
            • 2. Latency and congestion analysis
              - Fault diagnosis methodology
              • 1. Layered troubleshooting approach
                • 2. Protocol analysis techniques
                  Topic 3: Routing Protocols and Optimization- IGP protocols
                  • 1. OSPF advanced design and optimization
                    • 2. IS-IS fundamentals and deployment
                      - EGP protocols
                      • 1. Route reflection and confederation
                        • 2. BGP policy control and attributes
                          Topic 4: Switching and Layer 2 Technologies- Ethernet switching
                          • 1. STP/RSTP/MSTP mechanisms
                            • 2. VLAN design and trunking
                              - High availability mechanisms
                              • 1. Link aggregation (Eth-Trunk)
                                • 2. Redundancy and loop prevention
                                  Topic 5: MPLS and VPN Technologies- VPN implementation
                                  • 1. L2VPN and L3VPN design
                                    • 2. Inter-AS VPN scenarios
                                      - MPLS fundamentals
                                      • 1. Label switching and forwarding
                                        • 2. LDP and MPLS architecture
                                          Topic 6: Network Security and QoS- Quality of Service
                                          • 1. Traffic classification and marking
                                            • 2. Congestion management and scheduling
                                              - Network security basics
                                              • 1. Basic security hardening
                                                • 2. ACL design and filtering

                                                  Huawei HCIE-Routing&Switching (Written)(Huawei Certified ICT Expert-Routing & Switching) Sample Questions:

                                                  Question #1
                                                  As shown in the following figure, in IPv4 and IPv6 environments the SEL value in an IS-IS NET address is always 00.

                                                  A. Ture
                                                  B. False


                                                  Question #2
                                                  Which of the following technologies use tunneling technology to communicate between IPv6 addresses?

                                                  A. NAT64
                                                  B. Dual Stack
                                                  C. 6to4
                                                  D. ISATAP


                                                  Question #3
                                                  To enable the routers at both ends of the IPv6 over IPv4 manual tunnel to exchange routing information, you can enable OSPFv3 on the tunnel. OSPFv3 can form a neighbor relationship and use the tunnel interface as a P2P tunnel interface.

                                                  A. True
                                                  B. False


                                                  Question #4
                                                  Regarding route introduction, which of the following description is wrong?

                                                  A. Introducing IBGP routes in OSPF may cause routing loops.
                                                  B. By default, the default metric of the external route redistributed by OSPF is 1, and the imported external route type is Type2.
                                                  C. bgp supports both import and network when generating routes. Network mode is more accurate.
                                                  D. After the ISIS level-2 network route is imported to the level-1 route, the routing loop is formed if the import policy is not manually configured.


                                                  Question #5
                                                  As shown in the figure below, which routes will R2 learn?

                                                  A. R2 can learn all the routes of R1.
                                                  B. R2 can learn the two routes 10.1.2.0/24 and 10.1.3.0/24.
                                                  C. R2 can learn the 10.1.1.0/24 route.
                                                  D. R2 can receive the LSP of R1 but cannot join the routing table.


                                                  Solutions:

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

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