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Huawei H12-221-ENU Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Switching Technologies | 15% | - RSTP and MSTP protocols - Eth-Trunk technology and configuration - Advanced switch features and security |
| Topic 2: IS-IS Routing Protocol | 18% | - IS-IS link state database and route calculation - IS-IS level-1 and level-2 routing - IS-IS basic concepts and network structure - IS-IS route control and optimization |
| Topic 3: Routing Control | 13% | - Route redistribution between protocols - IP prefix list and access control list - Routing policy and filter policy |
| Topic 4: IP Multicast | 10% | - Multicast principles and addresses - IGMP protocol and operations - PIM-DM and PIM-SM mechanisms |
| Topic 5: BGP Routing Protocol | 22% | - BGP path attributes and route selection rules - BGP basic principles and session establishment - BGP confederation and route reflector - BGP route policy and filtering |
| Topic 6: OSPF Routing Protocol | 22% | - OSPF neighbor and adjacency establishment - OSPF basic principles and characteristics - OSPF area types and LSA types - OSPF special configurations and troubleshooting - OSPF route summarization and filtering |
Huawei HCIP-Routing&Switching-IERS(Huawei Certified ICT Professional-Implementing Enterprise Routing and Switching Network) Sample Questions:
1. Which of the following description about the OSPF LSA format is incorrect?
A) LS age field indicates the time that the LSA has survived. The unit is seconds.
B) Advertising Routes field in the Type-1 LSA indicates the router ID of the router that originated the LSA.
C) LS type field identifies the format and function of the LSA.
D) The smaller the LS sequence number, the newer the LSA.
2. OSFF only has authentication information in Hello packets, and OSFF supports MD5 cipher text authentication.
A) TRUE
B) FALSE
3. Both policy routing and routing policies can affect the forwarding process of data packets, but they affect the packets differently. Policy routing is based on policy-based forwarding. Find the routing table forwarding after failure. Based on the forwarding plane, it serves the forwarding policy and needs to be manually configured. The routing policy is based on the destination address and is forwarded according to the routing table. Based on the control plane, it serves the routing protocol and the routing table, and combines with the routing protocol to complete the policy.
A) TRUE
B) FALSE
4. About the Stub area, full Stub area and NSSA, whichi is correct?
A) Stub area can import AS external routes. The NSSA cannot import AS external routes.
B) Stub areas can flood Type 3 and Type 4 LSAs. Full Stub areas cannot flood Type 3 and Type 4 LSAs (except Type 3 LSAs that advertise default routes).
C) The biggest difference between a fully stub area and a stub area is that cannot flood the Type 3 LSA.
D) The Stub area can only flood Type 3 LSAs, and the full Stub area cannot flood any Type 3 LSA (including the default route LSA).
5. Regarding the BGP AS number, which of the following descriptions are wrong? (Multiple Choice)
A) When a 2-byte AS is supported, the private AS number ranges from 64512 to 65535.
B) When a 2-byte AS is supported, the value ranges from 1 to 65535.
C) Devices that support 4-byte AS numbers are not compatible with devices that support 2-byte AS numbers.
D) A homemade system can have multiple AS numbers
Solutions:
| Question # 1 Answer: D | Question # 2 Answer: B | Question # 3 Answer: A | Question # 4 Answer: C | Question # 5 Answer: B,C,D |






