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

H12-261_V3.0-ENU real exams

Exam Code: H12-261_V3.0-ENU

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

Updated: Sep 06, 2026

Q & A: 485 Questions and Answers

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

SectionObjectives
Topic 1: Network Services and Security- Network services
  • 1. DHCP, NAT, and multicast
    - Network security
    • 1. Device hardening and control plane protection
      • 2. ACLs and traffic filtering
        Topic 2: Advanced IP Network Design- IPv4/IPv6 deployment planning
        • 1. Addressing design and migration strategies
          • 2. Dual-stack deployment
            - Enterprise network architecture design
            • 1. Scalability and redundancy design
              • 2. Hierarchical network design principles
                Topic 3: Routing Protocols and Technologies- EGP protocols
                • 1. BGP policy control and optimization
                  • 2. Route reflection and confederation
                    - IGP protocols
                    • 1. OSPF advanced features and optimization
                      • 2. IS-IS fundamentals and tuning
                        Topic 4: Network Optimization and Troubleshooting- Performance optimization
                        • 1. QoS mechanisms and traffic engineering
                          - Fault diagnosis
                          • 1. Routing convergence issues
                            • 2. Protocol troubleshooting methodologies
                              Topic 5: MPLS and VPN Technologies- VPN implementations
                              • 1. L3VPN design and deployment
                                • 2. L2VPN and VPLS concepts
                                  - MPLS architecture
                                  • 1. Label distribution and forwarding

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

                                    Question 1

                                    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.


                                    Question 2

                                    An engineer uses two routers to test IPv6 services, and simulates the interconnection between headquarters and branches by running BGP4+.

                                    The logical topology of the network is shown in the figure. Regarding the transmission of IPv6 routes between two devices, which of the following statements is wrong?

                                    A. BGP4+ transmits routing information between peers through Update packets
                                    B. When routing is transmitted, it will carry recognized mandatory attributes such as AS_Path
                                    C. When routing, the Next_Hop attribute must be an IPv6 global unicast address
                                    D. If the Update message carries the MP_REACH_NLRI attribute, it means that the advertised route is reachable


                                    Question 3

                                    The basic header length of an IPv6 message is a fixed value.

                                    A. TURE
                                    B. FALSE


                                    Question 4

                                    The router HW1 exists as an MPLS LSR router in the network of the operator HW. The router receives a packet carrying a label, but the label entry does not exist in its LFIB.
                                    So how does the router handle the message?

                                    A. Router HW1 will strip the label and find the IP destination address of the FIB.
                                    B. Router HW1 uses LDP to create an LSP and creates a new path for the label carried in the packet in the LFIB.
                                    C. Router HW1 will forward the message using the default label.
                                    D. Router HW1 will discard the message.


                                    Question 5

                                    Which of the following parameters are modified, and then the IS-IS neighbor relationship needs to be re-established? (Multiple choice)

                                    A. Modify the IP address of the IS-IS interface
                                    B. Modify the level of the IS-IS interface
                                    C. Modify the IH transmission interval of the IS-IS interface
                                    D. Modify the cost value of the IS-IS interface


                                    Solutions:

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

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