Huawei HCIE-Routing&Switching (Written)(Huawei Certified ICT Expert-Routing & Switching) : H12-261-ENU

H12-261-ENU real exams

Exam Code: H12-261-ENU

Exam Name: HCIE-Routing&Switching (Written)(Huawei Certified ICT Expert-Routing & Switching)

Updated: Jul 21, 2026

Q & A: 525 Questions and Answers

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Huawei H12-261-ENU Exam Syllabus Topics:

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

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

                                                  1. The OSPFv3 protocol is a separately developed protocol. It differs from OSPFv2 in that OSPFv3 is based on links rather than network segments. Which of the following statement is wrong?

                                                  A) The two routers connected to the link can establish neighbor relationships even if their IPv6 address prefixes are different.
                                                  B) The routing information obtained by the OSPFv3 router from the neighbor uses the link-local address of the neighbor as the next hop of the forwarded packet.
                                                  C) All OSPFv3 interfaces use the Link-local address as the destination address of the packet except the virtual link.
                                                  D) The two routers connected to the link can establish neighbor relationships even if no unicast IPv6 address is configured.


                                                  2. If the Option field 0X000013 in the OSPFv3 Hello packet sent by GigabitEthernet 0/0/0 port of Router A, which of the following descriptions are correct? (Multiple Choice)

                                                  A) GigabitEthernet0/0/0 of Router A belongs to the NSSA area.
                                                  B) Router A supports AS-ExternaI-LSA flooding
                                                  C) GigabitEthernet0/0/0 of Router A will participate in IPv6 route calculation.
                                                  D) Router A is an OSPFv3 device with forwarding capability


                                                  3. The existing route-policy is as follows: ip community-filter 1permit 100:1 ip as-path-filter 2 permit^100$ route-policytest permit node 10 if-match community-filter 1 if-match as-path-filter 2 apply as -path 200 the above configuration description, which is correct?

                                                  A) Only when the community attribute value carried in the BGP route is 100:1 or AS_PATH is 100, the BGP route matches the route-policy above. The AS-PATH attribute of the matching route will be changed to 200.
                                                  B) As long as the BGP route carries the community attribute value of 100:1, the BGP route matches the route-policy above. The AS-PATH attribute of the matching route will be changed to 200.
                                                  C) Only when the community attribute value carried in the BGP route is 100:1 and AS_PATH is 100, the BGP route matches the route-policy above. The AS-PATH attribute of the matching route will be changed to 200.
                                                  D) Only when the BGP route carries the AS-PATH as 100, the BGP route matches the route-policy above. The AS-PATH attribute of the matching route will be changed to 200.


                                                  4. When there are multiple matching rules in the ACL of the VRP, which of the following statements is correct about the matching order?

                                                  A) There is only one matching order and cannot be modified.
                                                  B) In case of confirmation, match the order by matching the permit first and then matching the deny.
                                                  C) By default, match according to the principle of "depth first"
                                                  D) In case of confirmation, follow the Rule-ID, match from small to large


                                                  5. If the PPP link between R1 and R2 is shown, and the direct connection port is not on the same network segment, but the R1 and R2 direct connection ports can communicate, and the Ethernet link cannot communicate under the same IP planning, what is the reason? (Multiple choice)

                                                  A) R1 and R2 are connected to the POS port, and the 24-bit subnet route of the direct connection port of the other party is learned through IPCP.
                                                  B) The data packets of the interconnected POS interface of R1 and R2 do not need to encapsulate the Ethernet header, and do not need to use ARP to request the MAC address.
                                                  C) R1 and R2 are connected to the POS port, and the 32-bit host route of the direct connection port of the other party is learned through IPCP.
                                                  D) The interconnected POS port of R1 and R2 learns the MAC address of the peer interface through LCP, and does not require the ARP request MAC address.


                                                  Solutions:

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

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