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 28, 2026
  • Q & A: 485 Questions and Answers
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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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  • Q & A: 485 Questions and Answers
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Huawei H12-261_V3.0-ENU Exam Syllabus Topics:

SectionWeightObjectives
Topic 1: Network Management & Optimization10%- Troubleshooting methodology
- SNMP and network monitoring
- QoS and traffic scheduling
Topic 2: 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
            Topic 3: IPv4 Unicast Routing25%- IS-IS
            • 1. Level-1/Level-2 routing
              • 2. IS-IS and OSPF comparison
                • 3. IS-IS protocol mechanism
                  - Routing Basics
                  • 1. Static routing and policy routing
                    • 2. Routing table and forwarding principles
                      - BGP
                      • 1. BGP route control and filtering
                        • 2. BGP neighbor establishment
                          • 3. BGP attributes and path selection
                            - OSPF
                            • 1. OSPFv2 principles and configuration
                              • 2. OSPF optimization and troubleshooting
                                • 3. LSA types and area design
                                  Topic 4: 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. Link aggregation and load balancing
                                            • 2. VLAN principles and configuration
                                              • 3. QinQ and VLAN mapping
                                                Topic 5: Advanced Technologies & Security20%- High Availability
                                                • 1. BFD and link detection
                                                  • 2. VRRP principles and deployment
                                                    - Route Control
                                                    • 1. Import and export routing control
                                                      • 2. Filter-policy and route-policy
                                                        - Network Security
                                                        • 1. URPF and anti-attack technologies
                                                          • 2. ACL and traffic filtering
                                                            • 3. DHCP and ARP security
                                                              Topic 6: IPv6 Technologies15%- IPv6 Basics
                                                              • 1. ICMPv6 and neighbor discovery
                                                                • 2. IPv6 address structure and types
                                                                  - IPv6 Routing Protocols
                                                                  • 1. BGP4+ and IPv6 interworking
                                                                    • 2. OSPFv3 and IS-IS for IPv6
                                                                      - IPv6 Transition
                                                                      • 1. NAT64 and DNS64
                                                                        • 2. Dual-stack and tunneling technologies

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

                                                                          1. Regarding the description of the label encapsulation format in MPLS, which is correct? (Multiple questions)

                                                                          A) The TTL field in the label is similar to the TTL (Time To Live) in the IP packet, and it also has the effect of preventing loops.
                                                                          B) The S field in the label, 1bit is used to identify whether the label is the bottom label of the stack, when the value is 1, it indicates the second-to-last label
                                                                          C) For Ethernet and PPP packets, the label stack is like a "cushion", located between the Layer 2 header and the data. When there is a VLAN tag, the MPLS header is placed between the Ethernet header and the VLAN tag.
                                                                          D) The total length of a single MPLS label is 4 bytes (32 bits)


                                                                          2. Which of the following is single package attack? (Multiple Choice)

                                                                          A) Malformed packet attack
                                                                          B) Special control packet attack
                                                                          C) Scanning detection attack
                                                                          D) DDoS attack


                                                                          3. 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 only after GigabitEthernet 1/0/2 is configured. Change to the same as GigabitEthernet1/0/1
                                                                          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 without changing the current configuration.


                                                                          4. If the default route is not used in the local IP routing table, the default route-import command is used to advertise the default route to the BGP peer (group).

                                                                          A) True
                                                                          B) False


                                                                          5. 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


                                                                          Solutions:

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

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