Huawei HCIE-Routing & Switching (Written) V3.0 : H12-261_V3.0-ENU

  • Exam Code: H12-261_V3.0-ENU
  • Exam Name: HCIE-Routing & Switching (Written) V3.0
  • Updated: Jul 30, 2026
  • Q & A: 485 Questions and Answers

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Huawei H12-261_V3.0-ENU Exam Syllabus Topics:

SectionWeightObjectives
Topic 1: Layer 2 Technologies20%- Spanning Tree Protocols
  • 1. STP protection mechanisms
    • 2. STP/RSTP/MSTP principles and configuration
      - Ethernet and VLAN
      • 1. VLAN principles and configuration
        • 2. QinQ and VLAN mapping
          • 3. Link aggregation and load balancing
            - High Reliability Technologies
            • 1. RRPP and ERPS
              • 2. Smart Link and Monitor Link
                Topic 2: Network Management & Optimization10%- QoS and traffic scheduling
                - SNMP and network monitoring
                - Troubleshooting methodology
                Topic 3: IPv6 Technologies15%- IPv6 Basics
                • 1. ICMPv6 and neighbor discovery
                  • 2. IPv6 address structure and types
                    - IPv6 Routing Protocols
                    • 1. OSPFv3 and IS-IS for IPv6
                      • 2. BGP4+ and IPv6 interworking
                        - IPv6 Transition
                        • 1. NAT64 and DNS64
                          • 2. Dual-stack and tunneling technologies
                            Topic 4: IPv4 Unicast Routing25%- Routing Basics
                            • 1. Routing table and forwarding principles
                              • 2. Static routing and policy routing
                                - IS-IS
                                • 1. IS-IS and OSPF comparison
                                  • 2. IS-IS protocol mechanism
                                    • 3. Level-1/Level-2 routing
                                      - BGP
                                      • 1. BGP route control and filtering
                                        • 2. BGP neighbor establishment
                                          • 3. BGP attributes and path selection
                                            - OSPF
                                            • 1. OSPF optimization and troubleshooting
                                              • 2. OSPFv2 principles and configuration
                                                • 3. LSA types and area design
                                                  Topic 5: Multicast Protocols10%- Multicast Fundamentals
                                                  • 1. IGMPv1/v2/v3 and IGMP snooping
                                                    • 2. Multicast address and forwarding
                                                      - PIM Protocols
                                                      • 1. PIM-DM and PIM-SM
                                                        • 2. Rendezvous Point and BSR
                                                          • 3. Multicast VPN and reliability
                                                            Topic 6: Advanced Technologies & Security20%- High Availability
                                                            • 1. VRRP principles and deployment
                                                              • 2. BFD and link detection
                                                                - Network Security
                                                                • 1. URPF and anti-attack technologies
                                                                  • 2. DHCP and ARP security
                                                                    • 3. ACL and traffic filtering
                                                                      - Route Control
                                                                      • 1. Filter-policy and route-policy
                                                                        • 2. Import and export routing control

                                                                          Huawei HCIE-Routing & Switching (Written) V3.0 Sample Questions:

                                                                          1. A company has built an OSPF network as shown in the following figure. The links form an OSPF neighbor relationship. All devices have announced their own loopback address. On one day, the S1-R2 and S2-R1 links are faulty. Which of the following description is correct? (Area 0 is split) (Multiple choice)

                                                                          A) R3 can learn the loopback route of R2 normally.
                                                                          B) R3 cannot learn the loopback route of R2.
                                                                          C) R5 can learn the loopback route of R2 normally.
                                                                          D) R1 can learn the loopback route of R2 normally.


                                                                          2. Which of the following description about the OSPF virtual link is true?

                                                                          A) The virtual link uses the outbound interface P as the link address.
                                                                          B) A virtual connection can be established in any area, and itself belongs to the area after it is established.
                                                                          C) The cost of the virtual link is the optimal link.
                                                                          D) The virtual link can be used to solve the problem that area 0 is divided.


                                                                          3. Which layers are shared in the OSI reference model and the TCP/IP model? (Multiple Choice)

                                                                          A) Session layer
                                                                          B) Expression layer
                                                                          C) Transport layer
                                                                          D) Data link layer
                                                                          E) Application layer


                                                                          4. Which of the following statement about the Router-LSA of OSPFv3 is correct? (Multiple choice)

                                                                          A) The data area of Router-LSA contains Link-Local address
                                                                          B) When the LSA header of LS type = 0x0001, represents LSA data area to Router-LSA
                                                                          C) Similar to OSPFv2, the Option field exists in the header of the LSA instead of the data area of the Router-LSA
                                                                          D) The data area of Router-LSA contains the interface ID of the local neighbor


                                                                          5. When deploying LLQ, you need to configure bandwidth parameters. What is the meaning of bandwidth parameters?

                                                                          A) This parameter should be as small as possible. It means that the bandwidth is always reserved, even if LLQ is used, this parameter will reduce the available bandwidth of the interface.
                                                                          B) It indicates that the reference CR is used to calculate the burst size of the built-in policer token bucket.
                                                                          C) Provide a built-in policer to limit the maximum available bandwidth of low latency queues during congestion
                                                                          D) This parameter is an option because LLQ always takes precedence over other queues


                                                                          Solutions:

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

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