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Huawei HCIE-R&S 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: Aug 03, 2026

Q&A Number: 485 Q&As

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

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

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

                                                                          1. In the process of using the LACP protocol, which of the following description is correct? (Multiple choice)

                                                                          A) You can prevent the Eth-Trunk interface from frequently flapping due to physical link reasons. Interface eth-trunk 1 Lacp preempt enable Lacp preempt delay delay-time
                                                                          B) You can remove a member interface in an enabled link aggregation group by using the following command: Interface Gigabitethemnet0/0/0 Debug Interface Gigabitethernet0/0/1 Undo eth-trunk 1 Interface Gigabitetheret0/0/ Undo shutdown
                                                                          C) You can add member interfaces to the link aggregation group enabled by the following command: Interface Gigabitethernet0/0/1 Debug Interface Gigabitethernet0/0/1 Trunkport Gigabitethernet0/0/ Interface Gigabitethernet0/0/1 Undo shutdown
                                                                          D) You can configure the source IP address for load balancing in the enabled link aggregation group by using the following command: Interface eth-trunk 1 Load-balance src-dst-ip


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

                                                                          A) True
                                                                          B) False


                                                                          3. As shown in the figure, PC1 and PC2 are hosts on the same network segment. Which of the following descriptions of the IPv6 neighbor status between PC1 and PC2 are correct? (Multiple questions)

                                                                          A) If the MAC address information of PC2 can be queried on PC1, the neighbor relationship may be Probe at this time
                                                                          B) If the MAC address information of PC2 can be queried on PC1, the neighbor relationship may be Stale at this time
                                                                          C) If the MAC address information of PC2 can be queried on PC1, then the neighbor relationship-Reachable
                                                                          D) There may be five neighbor states between PC1 and PC2, which are Incomplete, Reachable, Stale, Delay and Probe


                                                                          4. The following statement about the NSSA area, which is correct?

                                                                          A) A default LSA must be automatically generated in the NSSA area to access the external network.
                                                                          B) The OSPF neighbor in the NSSA area sends the he1lo text. The N position in the option- field is 0, and the E position is 1.
                                                                          C) The NSSA area generates seven types of LSAs to advertise external routes. The FA address in the seven types of LSAs is used to prevent loops.
                                                                          D) In the OSPF neighbor relationship sent by the OSPF neighbor, the N position in the option field is set to 1. The E position is 0.


                                                                          5. In MPLS VPN, in order to distinguish IPv4 prefixes that use the same address space, the RD value is added to the IPv4 address. Which of the following description is correct? (Multiple Choice)

                                                                          A) On the PE device, each VPN instance corresponds to an RD value. On the same PE device, the RD value must be unique in the Update message
                                                                          B) DRD is encapsulated as an extended community attribute of BGP in the transmission process
                                                                          C) After the PE receives the IPv4 route from the CE, it adds RD to the IPv4 route and converts it into a globally unique VPN-IPv4 route, and publishes it on the public network
                                                                          D) RD can be used to control the release of VPN routing information


                                                                          Solutions:

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

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