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

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

                                                  1. The IPSG can be configured with a static binding table or used with DHCP-snooping to form a binding table.

                                                  A) True
                                                  B) False


                                                  2. When a router constructs its own routing table based on routing entries learned by different routing protocols, which routing entries are added to the routing table?

                                                  A) Routing entries with the fastest routing process
                                                  B) Unique routing entries
                                                  C) The routing entry with the largest preference value
                                                  D) The route entry with the largest next hop address
                                                  E) Have a routing entry with a low router ID


                                                  3. In the following topology, R1 can access the Internet through R2 and R3. The EBGP connections are established between R1 and R2, R1 and R3. R2 and R3 belong to the same AS. The default route is advertised through BGP. The traffic that R1 is required to access the Internet is preferably R2. Which of the following practices can be achieved? (Multiple Choice)

                                                  A) R2 specifies that the peer R1 sets the MED attribute to 150 in the export direction.
                                                  B) R2 specifies that the peer R1 sets the local priority to 150 in the export direction.
                                                  C) R1 specifies that the peer R3 sets the MED attribute to 150 in the import direction.
                                                  D) R1 specifies that the peer R2 sets the local priority to 150 in the import direction.


                                                  4. What is wrong about the description of MPLS below?

                                                  A) The length of the MPLS label is 20 bits and it is used for packet forwarding.
                                                  B) The label space range of dynamic signaling protocols such as LDP and MP-BGP is 16-1023.
                                                  C) In the TTL processing mode by using Pipe mode, IP packets are transmitted on the MPLS network. The TTL value of the IP packets is reduced by 1 in the MPLS ingress node and the egress node respectively.
                                                  D) MPLS supports multi-layer tag nesting, the S-bit value of the innermost tag is 1.


                                                  5. Which of the following descriptions are true about the establishment process of LDP LSP? (Multiple Choice)

                                                  A) When the network topology changes cause the next hop neighbor to change, the LSR can directly reestablish the LSP by using the label sent by the original non-optimal next hop neighbor.
                                                  B) In the label publishing DoD mode, for a specific FEC, the LSR does not need to obtain the label request message from the upstream to perform label distribution and distribution.
                                                  C) By default, the LSR is for the same FEC. The received label mapping can only come from the optimal next hop. It cannot be from the non-optimal next hop.
                                                  D) The process of establishing an LSP is actually the process of binding the FEC to the label and advertising the binding to the upstream LSR of the LSP.


                                                  Solutions:

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

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