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 14, 2026
  • Q & A: 525 Questions and Answers

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Huawei H12-261-ENU Exam Syllabus Topics:

SectionObjectives
Topic 1: MPLS and VPN Technologies- MPLS fundamentals
  • 1. LDP and MPLS architecture
    • 2. Label switching and forwarding
      - VPN implementation
      • 1. L2VPN and L3VPN design
        • 2. Inter-AS VPN scenarios
          Topic 2: Network Security and QoS- Quality of Service
          • 1. Congestion management and scheduling
            • 2. Traffic classification and marking
              - Network security basics
              • 1. Basic security hardening
                • 2. ACL design and filtering
                  Topic 3: 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
                          Topic 4: Switching and Layer 2 Technologies- High availability mechanisms
                          • 1. Redundancy and loop prevention
                            • 2. Link aggregation (Eth-Trunk)
                              - Ethernet switching
                              • 1. VLAN design and trunking
                                • 2. STP/RSTP/MSTP mechanisms
                                  Topic 5: Advanced IP Network Fundamentals- IPv4/IPv6 addressing and design
                                  • 1. IPv6 deployment scenarios
                                    • 2. Address planning and subnetting
                                      - Network convergence principles
                                      • 1. Scalability considerations
                                        • 2. Control plane vs data plane concepts
                                          Topic 6: 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

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

                                                  Question #1

                                                  Which is wrong about the EVPN Type 5 class routing?

                                                  • A. Type 5 is an IP prefix route.
                                                  • B. The IP Prefix field can carry either the host IP address or the network segment address.
                                                  • C. Type 5 routing carries both Layer 2 VNI and Layer 3 VNI
                                                  • D. Type 5 routing carries Layer 3 VNI.
                                                  Reveal Solution  Discussion  0

                                                  Correct Answer: C  🗳️

                                                  Question #2

                                                  What do we usually call the devices in the MPLS BGP VPN domain? (Multiple choice)

                                                  • A. User router
                                                  • B. P
                                                  • C. PE
                                                  • D. CP
                                                  Reveal Solution  Discussion  0

                                                  Correct Answer: B,C  🗳️

                                                  Question #3

                                                  The following statement about cross-domain MPLS VPN, which is wrong? (Multiple Choice)

                                                  • A. For the cross-domain vPN-Option B mode, an MP-eBGP neighbor relationship needs to be established between the two ASBR.
                                                  • B. When the public network label only use LDP, for the cross-domain vp-Option-c scheme 2, three-layer labels are required for packet forwarding.
                                                  • C. For the cross-domain vPn-OptionA mode, the route between the two ASBR is a common IPv4 route.
                                                  • D. For the cross-domain vPN-OptionB mode, two ASBR are interconnected by multiple interfaces (including sub-interfaces). Each interface is associated with one VPN. Each ASBR-PE uses the peer as the CE.
                                                  Reveal Solution  Discussion  0

                                                  Correct Answer: B,D  🗳️

                                                  Question #4

                                                  As shown in the following figure, the corresponding peer relationship is established. The AS400 receives the 1.1.1.1/32 network route from the AS100. What is the AS-Path attribute?

                                                  • A. 100 200 300
                                                  • B. 100 200 300 400
                                                  • C. 400 300 200 100
                                                  • D. 300 200 100
                                                  Reveal Solution  Discussion  0

                                                  Correct Answer: D  🗳️

                                                  Question #5

                                                  Which of the following attacks are DoS (Denial of Service) attacks? (Multiple Choice)

                                                  • A. Single packet attack
                                                  • B. Flood attack
                                                  • C. Man-in-the-middle attack
                                                  • D. Source IP address spoofing attack
                                                  Reveal Solution  Discussion  0

                                                  Correct Answer: B,D  🗳️

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