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

SectionWeightObjectives
Topic 1: Layer 2 Technologies20%- Ethernet and VLAN
  • 1. VLAN principles and configuration
    • 2. Link aggregation and load balancing
      • 3. QinQ and VLAN mapping
        - Spanning Tree Protocols
        • 1. STP/RSTP/MSTP principles and configuration
          • 2. STP protection mechanisms
            - High Reliability Technologies
            • 1. Smart Link and Monitor Link
              • 2. RRPP and ERPS
                Topic 2: Network Management & Optimization10%- QoS and traffic scheduling
                - Troubleshooting methodology
                - SNMP and network monitoring
                Topic 3: Advanced Technologies & Security20%- Network Security
                • 1. URPF and anti-attack technologies
                  • 2. ACL and traffic filtering
                    • 3. DHCP and ARP security
                      - High Availability
                      • 1. VRRP principles and deployment
                        • 2. BFD and link detection
                          - Route Control
                          • 1. Import and export routing control
                            • 2. Filter-policy and route-policy
                              Topic 4: Multicast Protocols10%- Multicast Fundamentals
                              • 1. Multicast address and forwarding
                                • 2. IGMPv1/v2/v3 and IGMP snooping
                                  - PIM Protocols
                                  • 1. PIM-DM and PIM-SM
                                    • 2. Rendezvous Point and BSR
                                      • 3. Multicast VPN and reliability
                                        Topic 5: IPv6 Technologies15%- IPv6 Transition
                                        • 1. Dual-stack and tunneling technologies
                                          • 2. NAT64 and DNS64
                                            - IPv6 Routing Protocols
                                            • 1. OSPFv3 and IS-IS for IPv6
                                              • 2. BGP4+ and IPv6 interworking
                                                - IPv6 Basics
                                                • 1. IPv6 address structure and types
                                                  • 2. ICMPv6 and neighbor discovery
                                                    Topic 6: IPv4 Unicast Routing25%- BGP
                                                    • 1. BGP attributes and path selection
                                                      • 2. BGP neighbor establishment
                                                        • 3. BGP route control and filtering
                                                          - OSPF
                                                          • 1. OSPF optimization and troubleshooting
                                                            • 2. OSPFv2 principles and configuration
                                                              • 3. LSA types and area design
                                                                - IS-IS
                                                                • 1. IS-IS and OSPF comparison
                                                                  • 2. Level-1/Level-2 routing
                                                                    • 3. IS-IS protocol mechanism
                                                                      - Routing Basics
                                                                      • 1. Routing table and forwarding principles
                                                                        • 2. Static routing and policy routing

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

                                                                          Question #1

                                                                          As shown in the figure, an engineer uses 4 routers to conduct branch network interoperability tests. Among them, R1, R2, and R3 in branch 1 deploy OSPF to achieve network interoperability, and R2, R3, and R4 in branch 2 deploy IS-IS to achieve network interoperability.

                                                                          Now the engineer wants to implement R1 to access the loopback address of R4. Which of the following operations can meet this requirement?

                                                                          • A. Advertise the default route only in the OSPF process of R2
                                                                          • B. In the OSPF process of R2 and the IS-IS process, respectively advertise the default route
                                                                          • C. Advertise the default route only in the IS-IS process of R2
                                                                          • D. No configuration is required
                                                                          Reveal Solution  Discussion  0

                                                                          Correct Answer: B  🗳️

                                                                          Question #2

                                                                          What are the differences between traffic policing and traffic shaping? (Multiple Choice)

                                                                          • A. For traffic policing, you can adjust the usage of the cache for traffic exceeding CIR.
                                                                          • B. Traffic policing uses the token bucket algorithm, and traffic shaping uses the SPD algorithm.
                                                                          • C. Apply traffic shaping in the direction of the entrance and use traffic policing in the direction of the exit.
                                                                          • D. For traffic shaping, you can adjust the usage of the buffer for traffic exceeding CIR.
                                                                          • E. For traffic shaping, the router will buffer excess packets until the bandwidth is available again.
                                                                          Reveal Solution  Discussion  0

                                                                          Correct Answer: D,E  🗳️

                                                                          Question #3

                                                                          Which of the following categories can ACL be divided into?

                                                                          • A. Advanced ACL
                                                                          • B. Basic ACL
                                                                          • C. User-defined ACL
                                                                          • D. Layer 2 ACL
                                                                          Reveal Solution  Discussion  0

                                                                          Correct Answer: A,B,C,D  🗳️

                                                                          Question #4

                                                                          A routing tool can define multiple entries.
                                                                          Which tool will automatically add a deny-any entry at the end of the configuration? (Multiple Choice)

                                                                          • A. IP-prefix
                                                                          • B. Route policy
                                                                          • C. Community-tilter
                                                                          • D. AS-path-filter
                                                                          Reveal Solution  Discussion  0

                                                                          Correct Answer: A,B,C,D  🗳️

                                                                          Question #5

                                                                          Although the STP protocol can solve the loop problem, the slow convergence of the network topology affects the user's communication quality. RSTP has made many improvements to STP. Which of the following is not an improvement of RSTP to STP?

                                                                          • A. RSTP's port state specifications are divided according to whether the port forwards user traffic and learns MAC addresses, reducing the original five port states to three
                                                                          • B. The non-root switch running RSTP sends configuration BPDUs at the interval specified by the Hello Timer. This behavior is completely performed by each device independently
                                                                          • C. If a port does not receive the configuration BPDU sent by the upstream device within 4 consecutive Hello Time, the device considers that the negotiation with this neighbor has failed
                                                                          • D. RSTP deletes 3 port states and adds 2 new port roles
                                                                          Reveal Solution  Discussion  0

                                                                          Correct Answer: C  🗳️

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