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

  • Exam Code: H12-261-ENU
  • Exam Name: HCIE-Routing&Switching (Written)(Huawei Certified ICT Expert-Routing & Switching)
  • Updated: Sep 08, 2026     Q & A: 525 Questions and Answers

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Huawei H12-261-ENU Exam Syllabus Topics:

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

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

                                                  Question #1

                                                  Which of the following statements about RADIUS is correct?

                                                  • A. RADIUS authentication and Portal authentication cannot be used together. Because Portal authentication is usually used, the Portal server can be used to authenticate users.
                                                  • B. RADIUS protocol authentication, authorization, and audit separation.
                                                  • C. MAC authentication does not require a username and password, so you cannot use RADIUS to authenticate a user.
                                                  • D. RADIUS supports both wired and wireless access methods.
                                                  Answer: D
                                                  Question #2

                                                  Which of the following is true about Smart-link? (Multiple Choice)

                                                  • A. Smart-link supports load sharing.
                                                  • B. Smart-link mainly includes two roles: primary port and slave port.
                                                  • C. Smart-link can be mixed with STP under the interface.
                                                  • D. Smart-link cannot detect the uplink and downlink status.
                                                  Answer: A,B
                                                  Question #3

                                                  Regarding the processing mode of MPLS for TTL, which of the following description is correct?

                                                  • A. In MPLS VPN, if you want to hide the structure of the MPLS backbone network, you can use the uniform mode in Ingress for private network packets.
                                                  • B. In the Pipe mode, when an IP packet passes through the MPLS network, the IP TTL is decremented by 1 to the MPLS TTL field in the ingress node.
                                                  • C. Uniform simulation, when the IP packet passes through the MPLS network, the IP TTL of the ingress node is decremented by 1, and the MPLS TTL field is a fixed value.
                                                  • D. The TTL of the MPLS label has the same meaning as the TTL in the IP header, which can prevent the MPLS network from generating a routing loop (according to the reason A)
                                                  Answer: D
                                                  Question #4

                                                  In addition to stateless address autoconfiguration, IPv6 devices can also obtain information such as address, gateway and DNS through DHCPv6.

                                                  • A. False
                                                  • B. True
                                                  Answer: A
                                                  Question #5

                                                  If the value of the Option field in the OSPFv3 Hello packet sent by GigabitEthernet 0/0/0 interface of Router A is 0x000013, which of the following description is correct? (Multiple Choice)

                                                  • A. GigabitEthernet0/0/0 interface of Router A belongs to the NSSA area.
                                                  • B. Router A supports AS-External-LSA flooding.
                                                  • C. GigabitEthernet0/0/0 interface of Router A will participate in IPv6 route calculation.
                                                  • D. Router A is an OSPFv3 device with forwarding capability.
                                                  Answer: B,C,D

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