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

H12-261-ENU Exam Simulator
  • Exam Code: H12-261-ENU
  • Exam Name: HCIE-Routing&Switching (Written)(Huawei Certified ICT Expert-Routing & Switching)
  • Updated: Sep 03, 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- VPN implementation
  • 1. L2VPN and L3VPN design
    • 2. Inter-AS VPN scenarios
      - MPLS fundamentals
      • 1. LDP and MPLS architecture
        • 2. Label switching and forwarding
          Topic 2: Advanced IP Network Fundamentals- Network convergence principles
          • 1. Control plane vs data plane concepts
            • 2. Scalability considerations
              - IPv4/IPv6 addressing and design
              • 1. Address planning and subnetting
                • 2. IPv6 deployment scenarios
                  Topic 3: Network Troubleshooting and Optimization- Fault diagnosis methodology
                  • 1. Protocol analysis techniques
                    • 2. Layered troubleshooting approach
                      - Performance optimization
                      • 1. Latency and congestion analysis
                        • 2. Routing optimization strategies
                          Topic 4: Routing Protocols and Optimization- IGP protocols
                          • 1. IS-IS fundamentals and deployment
                            • 2. OSPF advanced design and optimization
                              - EGP protocols
                              • 1. Route reflection and confederation
                                • 2. BGP policy control and attributes
                                  Topic 5: 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
                                          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

                                                  Which of the following statements about the BFD one-armed echo function are correct? (Multiple Choice)

                                                  A. The BFD one-armed echo function is applicable to scenarios where one device supports BFD and the other device does not.
                                                  B. After the BFD one-armed echo function is enabled, the destination IP address and source IP address of the BFD packets are the same.
                                                  C. The default destination IP address of the BFD one-armed echo function protocol packet is 224.0.0.184.
                                                  D. The BFD one-armed echo function must be configured with a local identifier and a remote identifier.


                                                  Question 2

                                                  If a Huawei switch runs the RSTP protocol, when will the BPDU on a port of the switch be aged?

                                                  A. On the interface, RSTP does not age BPDUs.
                                                  B. After the Forward Delay expires
                                                  C. After MaxAge times out
                                                  D. After more than 6 seconds
                                                  E. After the Hold time expires


                                                  Question 3

                                                  As shown in the figure, Between R1 and R2 are PPP links and the direct connection ports are not on the same network segment, but the R1 and R2 direct connection ports can communicate, and the Ethernet link cannot communicate under the same IP planning, what are the reasons? (Multiple Choice)

                                                  A. R1 and R2 are connected to the POS port and learns the MAC address of the peer interface through LCP, and does not require the ARP request MAC address.
                                                  B. R1 and R2 are connected to the POS port, and the 32-bit host route of the direct connection port of the other party is learned through IPCP.
                                                  C. R1 and R2 are connected to the POS port, and the 24-bit subnet route of the direct connection port of the other party is learned through IPCP.
                                                  D. The data packets of the interconnected POS interface of R1 and R2 do not need to encapsulate the Ethernet header, and do not need to use ARP to request the MAC address.


                                                  Question 4

                                                  Two routers are connected through the serial port, but the interconnection interface cannot be pinged. Now check the port status as follows, which is the possible reason? (No figure is shown, one PPP, and one HDLC, you can find the reason.)

                                                  A. Link bandwidth is not enough
                                                  B. Link layer protocol is inconsistent
                                                  C. The IP address is not on the same network segment.
                                                  D. Subnet mask does not match


                                                  Question 5

                                                  A switch is running the Rapid Spanning Tree Protocol (RSTP).
                                                  Upon a topology change, what happens to dynamic entries in the L2 forwarding table?

                                                  A. All entries are removed except for entries behind edge ports.
                                                  B. All entries are removed except for those behind edge ports and the port where TC was received.
                                                  C. Only entries behind the port where TC was received are removed.
                                                  D. All entries are removed (purged).
                                                  E. The aging timer is set to 15 seconds, so idle entries age out.


                                                  Solutions:

                                                  Question 1
                                                  Answer: A,B
                                                  Question 2
                                                  Answer: E
                                                  Question 3
                                                  Answer: B,D
                                                  Question 4
                                                  Answer: B
                                                  Question 5
                                                  Answer: B

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