Try and practice the latest Huawei : H12-221-ENU real questions & answers
Updated: May 27, 2026
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Huawei HCIP-Routing&Switching-IERS(Huawei Certified ICT Professional-Implementing Enterprise Routing and Switching Network) Sample Questions:
1. For link-state routing protocols, in the direction of routing, filtering can actually block the link-state information transmission, the effect of filtering is routing cannot be added to the local routing table, and its neighbors also cannot receive the complete routing state information.
A) False
B) True
2. The following description about OSPF packets, which is incorrect?
A) The DD packet contains all the LSA information and can be used to periodically synchronize the link state database information between neighbors.
B) The DD packet describes the link state summary information by carrying the LSA header information.
C) 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.
D) The interval for sending hello packets between two routers must be the same. Otherwise, the neighbor cannot be established.
3. Which of the following commands can be used to leak level-2 area routes to the level-1 area?
A) export isis level-2 into level-1
B) advertise isis level-2 into level-1
C) import isis level-2 into level-1
D) import-route iris level-2 into level-1
4. Regarding the BGP AS number, which of the following descriptions are wrong? (Multiple Choice)
A) When a 2-byte AS is supported, the value ranges from 1 to 65535.
B) When a 2-byte AS is supported, the private AS number ranges from 64512 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
5. Which types of metrics are supported by IS-IS protocol?
A) Narrow
B) Tos
C) default
D) wide
Solutions:
| Question # 1 Answer: A | Question # 2 Answer: A | Question # 3 Answer: D | Question # 4 Answer: A,C,D | Question # 5 Answer: A,D |
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