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: Aug 17, 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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  • 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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Huawei H12-261_V3.0-ENU Exam Syllabus Topics:
SectionWeightObjectives
Topic 1: Network Management & Optimization10%- QoS and traffic scheduling
- Troubleshooting methodology
- SNMP and network monitoring
Topic 2: 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. Link aggregation and load balancing
          • 3. QinQ and VLAN mapping
            - High Reliability Technologies
            • 1. RRPP and ERPS
              • 2. Smart Link and Monitor Link
                Topic 3: IPv4 Unicast Routing25%- IS-IS
                • 1. Level-1/Level-2 routing
                  • 2. IS-IS and OSPF comparison
                    • 3. IS-IS protocol mechanism
                      - BGP
                      • 1. BGP neighbor establishment
                        • 2. BGP route control and filtering
                          • 3. BGP attributes and path selection
                            - Routing Basics
                            • 1. Routing table and forwarding principles
                              • 2. Static routing and policy routing
                                - OSPF
                                • 1. OSPF optimization and troubleshooting
                                  • 2. LSA types and area design
                                    • 3. OSPFv2 principles and configuration
                                      Topic 4: IPv6 Technologies15%- IPv6 Transition
                                      • 1. NAT64 and DNS64
                                        • 2. Dual-stack and tunneling technologies
                                          - IPv6 Basics
                                          • 1. IPv6 address structure and types
                                            • 2. ICMPv6 and neighbor discovery
                                              - IPv6 Routing Protocols
                                              • 1. OSPFv3 and IS-IS for IPv6
                                                • 2. BGP4+ and IPv6 interworking
                                                  Topic 5: Advanced Technologies & Security20%- Network Security
                                                  • 1. DHCP and ARP security
                                                    • 2. ACL and traffic filtering
                                                      • 3. URPF and anti-attack technologies
                                                        - Route Control
                                                        • 1. Filter-policy and route-policy
                                                          • 2. Import and export routing control
                                                            - High Availability
                                                            • 1. BFD and link detection
                                                              • 2. VRRP principles and deployment
                                                                Topic 6: Multicast Protocols10%- Multicast Fundamentals
                                                                • 1. Multicast address and forwarding
                                                                  • 2. IGMPv1/v2/v3 and IGMP snooping
                                                                    - PIM Protocols
                                                                    • 1. Multicast VPN and reliability
                                                                      • 2. Rendezvous Point and BSR
                                                                        • 3. PIM-DM and PIM-SM
                                                                          Huawei HCIE-Routing & Switching (Written) V3.0 Sample Questions:

                                                                          1. Regarding the characteristics of CE dual-homing, which of the following statement is incorrect?

                                                                          A) CE and PE form a CE dual-homing network, which can ensure high network availability.
                                                                          B) CE accesses the backbone network through two links. These two links can be used for load sharing or as active and standby links.
                                                                          C) The VRFs of two PEs connected to the same CE can belong to different VPNs.
                                                                          D) In CE dual-homing networking, loops may occur, and route-tags can be used to solve loop problems.


                                                                          2. OSPFv2 is an IGP running on an IPv4 network; OSPFv3 is an IGP running on an IPv6 network. Compared with OSPFv2, OSPFv3 has a similar LSA type, but the functions are slightly different.
                                                                          Which of the following is not included in the LSA type of OSPFv3?

                                                                          A) AS-External-LSA
                                                                          B) Network-LSA Router-LSA Network-LSA Inter-Area-Prefix-LSA Inter-Area-Router-LSA AS-External-LSA Group-membership-LSA Type-7-LSA Link-LSA Intra-Area-Prefix-LSA
                                                                          C) Router-LSA
                                                                          D) ASBR-Summary-LSA


                                                                          3. When the IPv6 address of the host is configured using stateless address configuration, and other parameters other than the address are obtained through DHCPv6, how should the M and 0 bits in the RA message be set?

                                                                          A) M=0 0=0
                                                                          B) M=1 0=0
                                                                          C) M=1 0=1
                                                                          D) M=0 0=1


                                                                          4. Which of the following statements are true about IPSec VPN? (Multiple Choice)

                                                                          A) Two routers establish IPSec VPN through aggressive mode, then only two packets are exchanged between the two devices to establish a tunnel.
                                                                          B) Savage mode can support NAT traversal, while main mode does not support NAT traversal
                                                                          C) Two routers establish IPSec VPN through the main mode. Starting from the fifth packet (including), the payload data is often encrypted.
                                                                          D) Two routers can establish OSPF neighbor relationships through IPSec VPN tunnels and exchange intranet routes.


                                                                          5. What message will be sent to the Agent when running NMS (Network Management Station) of SNMPV1?

                                                                          A) Get, Set, Getnext and GetBulk
                                                                          B) Trap, Get and Set
                                                                          C) Trap only
                                                                          D) Get, Set and GetBulk
                                                                          E) Get, Set and Getnext


                                                                          Solutions:

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

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