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

H12-261_V3.0-ENU real exams

Exam Code: H12-261_V3.0-ENU

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

Updated: Sep 30, 2026

Q & A: 485 Questions and Answers

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

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

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

                                                                          Question #1

                                                                          Which of the following statements about the attributes of the ISIS protocol LSP message are correct?
                                                                          (Multiple choice)

                                                                          • A. When the link state information increases, the packet length of the SP can be increased, so that each LSP can carry more information.
                                                                          • B. Configure an intelligent timer generated by the LSP, which can automatically adjust the delay time according to the change frequency of the routing information.
                                                                          • C. The LSP fast flooding feature first spreads out LSPs smaller than the specified number to speed up the synchronization process of the LSDB.
                                                                          • D. Reduce the minimum interval for sending LSPs on an interface to speed up LSP diffusion.
                                                                          Reveal Solution  Discussion  0

                                                                          Correct Answer: B,C  🗳️

                                                                          Question #2

                                                                          Which of the following LSAs only spread in a single area? (Multiple choice)

                                                                          • A. Network LSA
                                                                          • B. Router LSA
                                                                          • C. AS External LSA
                                                                          • D. Summary LSA
                                                                          Reveal Solution  Discussion  0

                                                                          Correct Answer: A,B,D  🗳️

                                                                          Question #3

                                                                          IGMP SSM Mapping statically binds the multicast source to the multicast group, so that group members of IGMPv1 and CGIPv2 can also access the SSM multicast network. Which of the following statements about ICIP SSM Mapping is wrong?

                                                                          • A. If IGMP SSM Mapping is not enabled, neither IGMPv1 nor IGMPv2 support the deployment of SSM multicast
                                                                          • B. The address of the SSM multicast group is 232.0.0.0-232. 255.255.255
                                                                          • C. ICMP SSM Mapping does not process IGMPv3 report messages. In order to ensure that hosts running any version of IGMP on the same network segment can get SSM services, it is necessary to run IGMPv3 on the multicast router interface connected to the network segment where the member host is located
                                                                          • D. Statically configure the SSM address mapping rules on the IGMP querier, and map the group join information in the IGMPv1 or IGMPv2 membership report to the group leave information
                                                                          Reveal Solution  Discussion  0

                                                                          Correct Answer: D  🗳️

                                                                          Question #4

                                                                          To configure AAA, you first need to define the XRADIUS RADIUS server as follows:
                                                                          [Huawei] radius-server template EXAM
                                                                          [Huawei-radius-EXAM] radius-serve shared-key cipher HUAwei123
                                                                          [Huawei-radius-EXAM] radius-se authentication 10.7.66.66 1812
                                                                          [Huawei-radius-EXAM] radius-se authorization 10.7.66.661812
                                                                          [Huawei radius -EXAM] radius-server retransmit 27. 1813
                                                                          [Huawei-radius-EXAM] radius-serv accounting 10

                                                                          • A. True
                                                                          • B. False
                                                                          Reveal Solution  Discussion  0

                                                                          Correct Answer: B  🗳️

                                                                          Question #5

                                                                          Which of the following description is wrong about sham link?

                                                                          • A. In order to forward VPN traffic through the MPLS backbone network, the route cost of the sham link should be less than the OSPF route cost of the backdoor link
                                                                          • B. Sham link is regarded as a link between two VPN instances. Each VPN instance must have an endpoint address of the sham link, which must be a Loopback with a 32bit mask in the VPN address space on the PE router. interface address
                                                                          • C. The endpoint address of the Sham link is advertised by BGP as the VPNv4 address. Routes that have passed through the sham link can also be imported into BGP in the form of VPNv4 routes
                                                                          • D. Sham link can be configured in any area and needs to be configured manually, and there must be a route to the sham link destination address (the sham link endpoint address of the peer PE) in the local VPN instance
                                                                          Reveal Solution  Discussion  0

                                                                          Correct Answer: C  🗳️

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