Huawei H12-261_V3.0-ENU Q&A - in .pdf

  • H12-261_V3.0-ENU pdf
  • Exam Code: H12-261_V3.0-ENU
  • Exam Name: HCIE-Routing & Switching (Written) V3.0
  • Updated: Jul 21, 2026
  • Q & A: 485 Questions and Answers
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  • Exam Code: H12-261_V3.0-ENU
  • Exam Name: HCIE-Routing & Switching (Written) V3.0
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  • Exam Code: H12-261_V3.0-ENU
  • Exam Name: HCIE-Routing & Switching (Written) V3.0
  • Updated: Jul 21, 2026
  • Q & A: 485 Questions and Answers
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Huawei H12-261_V3.0-ENU Exam Syllabus Topics:

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

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

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

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


                                                                          2. The HTTP protocol is based on TCP. Therefore, you can use the TCP Flood attack defense method to defend against HTTP flood attacks.

                                                                          A) True
                                                                          B) False


                                                                          3. RSTP provides different protection functions in different scenarios. Which statement is wrong? (Multiple choice)

                                                                          A) The designated port with root protection function enabled, its end [role can only remain as designated port
                                                                          B) Enable the designated port of root protection. When the port receives a better RST BPDU, the port will enter the Discarding state and no longer forward packets. If the port does not receive a better RST BPDU within a period of time, it will automatically return to the normal Forwarding state
                                                                          C) After the BPDU protection function is activated on the switching device, if the edge port receives the RST BPDU, the edge port will be set as a non-edge port, and the spanning tree calculation will be performed again
                                                                          D) After the anti-TC-BPDU packet attack function is enabled, the number of times the switching device processes TC BPDU packets in a unit time can be configured


                                                                          4. Network managers can use CAR technology in traffic monitoring.
                                                                          Which of the following technologies can be applied in CAR? (Multiple Choice)

                                                                          A) Double-barrel single-speed
                                                                          B) Double-barrel double-speed
                                                                          C) Single-barrel single-speed
                                                                          D) Three-barrel single-speed


                                                                          5. Regarding BGP/MPLS IP VPN routing interaction, which is wrong in the following description?.

                                                                          A) The ingress PE will convert the IPv4 route received from the CE into a VPNv4 route, and save it according to different VPN instances
                                                                          B) The egress PE can send IPv4 routes to the remote CE through BGP, IGP or static routing
                                                                          C) The exchange between PE and CE is IPv4 routing information
                                                                          D) After the egress PE receives the VPNv4 route advertised by the ingress PE, it filters the VPNv4 route according to the RT attribute carried by the route


                                                                          Solutions:

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

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