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

H12-261_V3.0-ENU

Exam Code: H12-261_V3.0-ENU

Exam Name: HCIE-Routing & Switching (Written) V3.0

Updated: Jul 29, 2026

Q & A: 485 Questions and Answers

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

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

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

                                                                          1. Which of the following descriptions about TTL in the MPLS header are correct? (Multiple choice)

                                                                          A) Can prevent infinite loop forwarding of messages
                                                                          B) When copying TTL is prohibited, tracert can see the LSR of the MPLS domain that it passes through
                                                                          C) The processing method of copying the IP TIL value hides the LSR of the MPL S domain and plays a certain security role
                                                                          D) MPLS has two ways to deal with TTL. One is to copy the IP TTL value of the TTL of the MPLS header when an IP packet enters the MPLS network; the other is to uniformly set the TTL of the MPLS header to 255 at the ingress LER.


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

                                                                          A) It indicates that the reference CR is used to calculate the burst size of the built-in policer token bucket.
                                                                          B) This parameter is an option because LLQ always takes precedence over other queues
                                                                          C) 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.
                                                                          D) Provide a built-in policer to limit the maximum available bandwidth of low latency queues during congestion


                                                                          3. Which of the following statements about the BFD single-arm echo function are correct? (Multiple Choice)

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


                                                                          4. The following statements about the VRRP protocol which are correct?

                                                                          A) VRRPv3 does not support authentication, while VRRPv2 supports authentication.
                                                                          B) Both VRRPv2 and VRRPv3 support authentication.
                                                                          C) The owner of the Mater IP address has VRRP priority of 255, so the priority range that can be configured is 0-254.
                                                                          D) VRRPv2 is only applicable to IPv4 networks, and VRRPv3 is only applicable to IPv6 networks.


                                                                          5. In order for the non-directly connected EBGP neighbors to be established normally, which of the following configurations must be included? (Multiple questions)

                                                                          A) peer as-number
                                                                          B) peer ignore
                                                                          C) peer connect-interface
                                                                          D) peer ebgp-max-hop


                                                                          Solutions:

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

                                                                          H12-261_V3.0-ENU Related Exams
                                                                          H12-261-ENU - HCIE-Routing&Switching (Written)(Huawei Certified ICT Expert-Routing & Switching)
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