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Huawei H12-221-ENU Exam Syllabus Topics:

Huawei HCIP-Routing&Switching-IERS(Huawei Certified ICT Professional-Implementing Enterprise Routing and Switching Network) Sample Questions:

1. What mechanism does the IS-IS protocol use to ensure the reliability of neighbor relationship establishment on broadcast networks?

A) Aging timer
B) Three-way handshake
C) Status synchronization
D) Checksum

2. Which description about BGP state machine is wrong?

A) The status of both BGP peers must be OpenConfirm before the BGP neighbor relationship can be established. The two parties exchange routing information through Update messages.
B) In the Active state, BGP will attempt to establish the access TCP connection, which is the intermediate state of BGP.
C) In the Idle state, BGP rejects any access connection request and is the BGP initial state.
D) In the Established state, BGP peers can exchange Update messages, Route-refresh messages, Keepalive messages, and Notification messages.

3. Inject the route into BGP through the network command. Which of the following description is wrong? (Multiple choice)

A) Match the prefix, the mask length does not have to match exactly
B) The route must exist in the IP routing table and is the best route
C) The route must be an IGP route
D) The mask length must be strictly matched

4. When two routers establish a logical BGP peer through multiple physical links, you must use the peer connect-interface command.

A) True
B) False

5. About the description of static LACP mode, which of the following statement is wrong?

A) When you need to provide a large link bandwidth between two directly connected devices and the peer device does not support LACP, you can choose to use the manual load balancing mode.
B) In static LACP mode, the interface that forwards data is called the active interface, and the interface that does not forward data is called the inactive interface. Only when the active interface fails, the back-up interface can be changed from an inactive interface to an active interface.
C) In the static LACP mode, the higher the interface LACP priority is, the higher the priority is, and the easier it is to be selected as an active port.
D) If preemption is enabled, the high-priority backup interface becomes an active interface within a certain period after the active interface fails. If preemption is not enabled, the faulty interface cannot automatically become an active interface.

Solutions: