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

H12-261-ENU real exams

Exam Code: H12-261-ENU

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

Updated: Sep 10, 2026

Q & A: 525 Questions and Answers

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Huawei H12-261-ENU Exam Syllabus Topics:

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

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

                                                  Question #1

                                                  Regarding the BGP confederation, which of the following description is incorrect?

                                                  • A. The confederation divides an AS into several sub-AS confederation. External As still considers the confederation to be an AS.
                                                  • B. The confederation can easily detect the routing loop within the AS because EBGP is running between the sub-As.
                                                  • C. The sub-autonomous system within the confederation can use a private AS number. A Huawei NE/AR router can be configured with up to 32 sub-AS in a single confederation.
                                                  • D. The sub-AS number of the confederation is advertised to BGP peers outside the confederation by default.
                                                  Answer: D
                                                  Question #2

                                                  User wants to enable the router for packets forwarding and routing according to the policy defined by itself based on the traditional route forwarding.
                                                  To achieve this goal, policy routing can be employed.
                                                  Which of the following about the description of policy routing is wrong?

                                                  • A. Policy routing can be used to match the packet length
                                                  • B. Policy routing cannot set DSCP in a statement
                                                  • C. Policy routing can set the next hop IP address
                                                  • D. Policy routing cannot be used to set IP Precedence
                                                  Answer: D
                                                  Question #3

                                                  The configuration of two routers in a company is as follows. which of the following statement about the R1 routing table is correct?

                                                  • A. If the priority of the R1 ISIS protocol is adjusted to 5, the P route entry with the destination network segment of 10.0.2.2/32 on R1 is generated by ISIS.
                                                  • B. If the priority of the ISIS protocol of R1 is adjusted to 5, the P route entry of the destination network segment with the destination network segment of 10.1.2.2/32 is generated by OSPF.
                                                  • C. Only when the priority of the R2 ISIS protocol is adjusted to 5, the P route entry with the destination network segment of 10.1.2.2/32 on R1 is generated by OSPF.
                                                  • D. If the priority of the R2 ISIS protocol is adjusted to 5, the P route entry with the destination network segment of 10.0.2.2/32 on R1 is generated by ISIS.
                                                  Answer: A
                                                  Question #4

                                                  Which is wrong about IPv6 Over VXLAN?

                                                  • A. IPv6 Over VXLAN does not generate entries.
                                                  • B. The tunnel between the Layer 2 and Layer 3 gateways of the VXLAN is an IPv4 network.
                                                  • C. IPv6 over VXLAN can solve the problem of insufficient IP address resources for terminal tenants.
                                                  • D. IPv6 over VXLAN means that Vxlan's Overlay network is an IPv6 network.
                                                  Answer: A
                                                  Question #5

                                                  Which of the following description is true about BGP aggregation?

                                                  • A. Manually aggregate routes in the BGP local routing table.
                                                  • B. After the Aggregate ipv4-address mask is configured, only the aggregated routes are advertised and the detailed routes are not advertised.
                                                  • C. For IPv6 routes, BGP supports manual aggregation and automatic aggregation.
                                                  • D. BGP enables automatic aggregation by default
                                                  Answer: A

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