Try Huawei : H12-221-ENU valid & accurate questions and answers
Last Updated: Jul 25, 2026
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Huawei H12-221-ENU Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: 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 2: BGP Routing Protocol | 22% | - BGP route policy and filtering - BGP path attributes and route selection rules - BGP confederation and route reflector - BGP basic principles and session establishment |
| Topic 3: IP Multicast | 10% | - IGMP protocol and operations - PIM-DM and PIM-SM mechanisms - Multicast principles and addresses |
| Topic 4: OSPF Routing Protocol | 22% | - OSPF special configurations and troubleshooting - OSPF area types and LSA types - OSPF neighbor and adjacency establishment - OSPF route summarization and filtering - OSPF basic principles and characteristics |
| Topic 5: Switching Technologies | 15% | - Eth-Trunk technology and configuration - Advanced switch features and security - RSTP and MSTP protocols |
| Topic 6: Routing Control | 13% | - Routing policy and filter policy - IP prefix list and access control list - Route redistribution between protocols |
Huawei HCIP-Routing&Switching-IERS(Huawei Certified ICT Professional-Implementing Enterprise Routing and Switching Network) Sample Questions:
1. The router receives two BGP routes with the following attributes. Select the optimal route based on the BGP routing rules.
Network NextHop MED LocPrf Prefval Path/Ogn
M 192.168.1.0 10.1.1.1 30 0 100 i
N 192.168.1.0 10.1.1.2 20 0 100 i
A) The optimal route is route M, because its AS Path is shorter than route N.
B) The optimal route is route M, because its MED is larger than route N.
C) The optimal route is route N, because its MED is smaller than route M.
D) The optimal route is route N, because its AS Path is longer than route N.
2. The MED attribute is passed between AS, and the AS party that receives this attribute will advertise it to any other third-party AS.
A) FALSE
B) TRUE
3. The Hold time carried by the BGP neighbor PeerA in the Open is 90s. The Hold time carried by the PeerB in the Open is 30s. The interval between the PeerA and the PeerB after the connection is successfully established is:
A) 30s
B) 10s
C) 90s
D) Do not send Keepalive packet
4. Which of the following description about the contents of the display bgp routing-table command output is correct?
A) The route to the destination address 192.168.1.0 is injected into the BGP routing table through the network command.
B) The route to the destination address 192.168.1.0 is not optimal in the BGP routing table.
C) The route to the destination address 192.168.1.0 was learned through AS200.
D) The MED value of the route to the destination address 192.168.1.0 is 100.
5. Which of the following descriptions is correct about BGP Local-Preference? (Multiple choice)
A) In BGP routing rules, the priority of MED is higher than Local-Preference, that is the priority is compared with MED.
B) BGP route the default value of Local-Preference is 100.
C) In BGP routing rules, the priority of Preferred-Value is higher than Local-Preference, that is the priority is compared with Preferred-Value.
D) BGP Local-Preference is usually used in the routing rule policy to control how data flows into As
Solutions:
| Question # 1 Answer: A | Question # 2 Answer: B | Question # 3 Answer: B | Question # 4 Answer: A | Question # 5 Answer: B,C |
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