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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 22, 2026

Q&A Number: 485 Q&As

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

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

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

                                                                          1. The SWA and SWB are connected by two physical Ethernet links.
                                                                          The SWA has the following interface configurations:
                                                                          [SWA]interface GigabitEthernet 1/0/1
                                                                          [SWA-GigabitEthernet 1/0/1] port link-type trunk
                                                                          [SWA-GigabitEthernet 1/0/1] port trunk allow-pass vlan 1 0 100
                                                                          [SWA]interface GigabitEthernet 1/0/2
                                                                          131 / 144 The safer , easier way to help you pass any IT exams.
                                                                          [SWA-GigabitEthernet 1/0/2] port link-type trunk
                                                                          [SWA-GigabitEthernet 1/0/2] port trunk allow-pass vlan 1 10
                                                                          These two links are aggregated
                                                                          Assume that the configuration on the SMB is correct.
                                                                          Which of the following statements are correct in view of this information? (Multiple Choice)

                                                                          A) GigabitEthernet 1/0/1 and Gigabitethernet 1/0/2 can be added to the same LAG without changing the current configuration.
                                                                          B) After the link aggregation is configured on the SWA and the SWB, if enabled MSTP, GigabitEthernet 1/0/1 and GigabitEthernet 1/0/2 will enter the Forwarding state in MSTP
                                                                          C) GigabitEthernet 1/0/1 and GigabitEthernet 1/0/2 cannot be added to the same LAG because the allowed VLANs are different.
                                                                          D) GigabitEthernet 1/0/1 and GigabitEthernet 1/0/2 can be added to the same LAG only after GigabitEthernet 1/0/2 is configured. Change to the same as GigabitEthernet1/0/1


                                                                          2. What parameters can the DHCPv6 server assign to the DHCPv6 client? (Multiple choice)

                                                                          A) DNS server address
                                                                          B) Gateway address
                                                                          C) IPv6 address prefix
                                                                          D) SNTP server address


                                                                          3. The OSPFv3 protocol is a separately developed protocol. It differs from OSPFv2 in that OSPFv3 is based on links rather than network segments. Which of the following statement is incorrect?

                                                                          A) The routing information obtained by the OSPFv3 router from the neighbor uses the link-local address of the neighbor as the next hop of the forwarded packet.
                                                                          B) All OSPFv3 interfaces use the Link-local address as the destination address of the packet except the virtual link.
                                                                          C) The two routers connected to the link can establish neighbor relationships even if no unicast IPv6 address is configured.
                                                                          D) The two routers connected to the link can establish neighbor relationships even if their IPv6 address prefixes are different.


                                                                          4. The following statements about the ISIS protocol route aggregation, which are correct?

                                                                          A) Route aggregation can be configured and validated on all types of routers.
                                                                          B) Route aggregation can only be configured on the level-1 router to take effect.
                                                                          C) Route aggregation can only be configured on the level-1-2 router to take effect.
                                                                          D) Route aggregation can only be configured on the level-2 router to take effect.


                                                                          5. Which of the following descriptions of the LSA age field are correct? (Multiple choice)

                                                                          A) If the LS age of an LSA reaches the LS Refresh Time (30min), the producer of this LSA needs to regenerate an instance of the LSA
                                                                          B) The unit of LSA age is second, the LS age of LSA in LSDB decreases with time
                                                                          C) If the LS age of an LSA reaches the LS Refresh Time (30min), any router can regenerate an instance of the LSA for this LSA
                                                                          D) The unit of LSA age is second, the LS age of LSA in LSDB increases with time


                                                                          Solutions:

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