• Exam Code: H12-261-ENU
  • Exam Name: HCIE-Routing&Switching (Written)(Huawei Certified ICT Expert-Routing & Switching)
  • Certification Provider: Huawei
  • Corresponding Certification:HCIE-R&S
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Huawei H12-261-ENU Exam Syllabus Topics:

SectionObjectives
Topic 1: Advanced IP Network Fundamentals- Network convergence principles
  • 1. Control plane vs data plane concepts
    • 2. Scalability considerations
      - IPv4/IPv6 addressing and design
      • 1. Address planning and subnetting
        • 2. IPv6 deployment scenarios
          Topic 2: Routing Protocols and Optimization- IGP protocols
          • 1. OSPF advanced design and optimization
            • 2. IS-IS fundamentals and deployment
              - EGP protocols
              • 1. BGP policy control and attributes
                • 2. Route reflection and confederation
                  Topic 3: Network Troubleshooting and Optimization- Performance optimization
                  • 1. Latency and congestion analysis
                    • 2. Routing optimization strategies
                      - Fault diagnosis methodology
                      • 1. Protocol analysis techniques
                        • 2. Layered troubleshooting approach
                          Topic 4: MPLS and VPN Technologies- VPN implementation
                          • 1. L2VPN and L3VPN design
                            • 2. Inter-AS VPN scenarios
                              - MPLS fundamentals
                              • 1. LDP and MPLS architecture
                                • 2. Label switching and forwarding
                                  Topic 5: Network Security and QoS- Quality of Service
                                  • 1. Congestion management and scheduling
                                    • 2. Traffic classification and marking
                                      - Network security basics
                                      • 1. Basic security hardening
                                        • 2. ACL design and filtering
                                          Topic 6: Switching and Layer 2 Technologies- High availability mechanisms
                                          • 1. Redundancy and loop prevention
                                            • 2. Link aggregation (Eth-Trunk)
                                              - Ethernet switching
                                              • 1. VLAN design and trunking
                                                • 2. STP/RSTP/MSTP mechanisms

                                                  Huawei HCIE-Routing&Switching (Written)(Huawei Certified ICT Expert-Routing & Switching) Sample Questions:

                                                  Which of the following description about the assertion mechanism is correct?

                                                  • A. The assertion mechanism is used for the election of the DR.
                                                  • B. The size of the IP address will not be used as a condition for election during the election of the winner.
                                                  • C. In the assertion mechanism, the winner is responsible for forwarding multicast data to the broadcast network segment.
                                                  • D. In the assertion mechanism, loser shut down the interface connected to the broadcast network.
                                                  Answer: C

                                                  Routers HW1 and HW2 are IP multicast routers. These routers use the (S, G) entry to forward multicast packets.
                                                  Which of the following is correct about the "S" in the forwarding entry?

                                                  • A. SSM address
                                                  • B. Any A, B or C host address
                                                  • C. GLOP address
                                                  • D. SDP/SAP address
                                                  • E. Manage a part of the multicast address
                                                  Answer: B

                                                  Which statements regarding IBGP or EBGP neighbors are true? (Multiple Choice)

                                                  • A. BGP updates from an IBGP peer are propagated to other IBGP and EBGP peers.
                                                  • B. EBGP neighbor peering must use the physical interface address to establish peering.
                                                  • C. IBGP neighbor peering can be established using the loopback interface address.
                                                  • D. BGP updates from an EBGP peer are propagated to other IBGP and EBGP peers.
                                                  • E. IBGP peers must be directly connected; otherwise, the IBGP-multihop option must be configured.
                                                  • F. EBGP peers must be directly connected; otherwise, the EBGP-multihop option must be configured.
                                                  Answer: C,D,F

                                                  The following are the statements about LDP reliability, which one is wrong?

                                                  • A. LDP FRR can also be used to generate an LSP for the label mapping from the non-optimal next hop. And it can be as a backup of the primary LSP to establish the transfer entries.
                                                  • B. The association between the LDP and the IGP requires the IGP to suppress the advertisement of the route and ensure that the LDP path is consistent with the IGP path.
                                                  • C. The manually configured LDP FRR policy defaults to a 32-bit backup route that triggers LDP to establish a backup LSP.
                                                  • D. LDP GR Graceful Restart uses the feature that the MPLS forwarding plane is separated from the control plane. The device does not interrupt when the protocol is restarted or the active/standby switchover is performed.
                                                  Answer: C

                                                  In an MPLS VPN network, different CE devices can exchange routing information with the same PE device using different routing protocols. The routing protocols used between different CE devices and the same device are independent of each other.

                                                  • A. True
                                                  • B. False
                                                  Answer: A

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