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Huawei H12-221-ENU Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Routing Control | 13% | - Route redistribution between protocols - IP prefix list and access control list - Routing policy and filter policy |
| Topic 2: OSPF Routing Protocol | 22% | - OSPF special configurations and troubleshooting - OSPF neighbor and adjacency establishment - OSPF area types and LSA types - OSPF basic principles and characteristics - OSPF route summarization and filtering |
| Topic 3: Switching Technologies | 15% | - RSTP and MSTP protocols - Advanced switch features and security - Eth-Trunk technology and configuration |
| 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 basic principles and session establishment - BGP path attributes and route selection rules - BGP confederation and route reflector - BGP route policy and filtering |
| Topic 6: IS-IS Routing Protocol | 18% | - IS-IS basic concepts and network structure - IS-IS route control and optimization - IS-IS level-1 and level-2 routing - IS-IS link state database and route calculation |
Huawei HCIP-Routing&Switching-IERS(Huawei Certified ICT Professional-Implementing Enterprise Routing and Switching Network) Sample Questions:
The first 4 bits of the IP multicast address are fixed 1110 and correspond to the high 25 bits of the multicast MAC address. In the last 28 bits of the IP multicast address, only 23 bits are mapped to the MAC address, so 5 bits of address information are lost. As a direct result, 32 IP multicast addresses are mapped to the same MAC address.
- A. FALSE
- B. TRUE
Correct Answer: B 🗳️
The BGP protocol has a type of message periodically sent between BGP neighbors to maintain the connection relationship. What is the message?
- A. Keepalive
- B. Hello
- C. Open
- D. Update
Correct Answer: A 🗳️
Which descriptions are correct about the Next Hop attribute of BGP? (Multiple Choice)
- A. There may be no Next_Hop attribute in the Update message.
- B. The BGP speaker does not change the next hop attribute of the routing information when it advertises a route to the EBGP peer.
- C. Must exist in the Update message
- D. Not necessarily the IP address of the neighbor device
Correct Answer: C,D 🗳️
The following description about OSPF packets, which is incorrect?
- A. The DD packet describes the link state summary information by carrying the LSA header information.
- B. The DD packet contains all the LSA information and can be used to periodically synchronize the link state database information between neighbors.
- C. The interval for sending hello packets between two routers must be the same. Otherwise, the neighbor cannot be established.
- D. Hello packets are used to discover and maintain neighbor relationships. Hello packets are also used to elect DR and BDR on the broadcast network and NBMA network.
Correct Answer: B 🗳️
Which of the following does the routing prefix meet the requirement of IP-Prefix? (Multiple Choice)
- A. 20.0.1.0/24
- B. 20.0.1.0/23
- C. 20.0.1.0/25
- D. 20.0.1.0/28
Correct Answer: A,C,D 🗳️
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