Regarding the description of the BGP state machine, the error is:

Regarding the description of the BGP state machine, the error is:
A . In the Idle state, BGP rejects any incoming connection requests and is the initial state of BG
C . In the Active state, BGP will attempt to establish a TCP connection, which is the intermediate state of BG
E . In the Established state, BGP peers can exchange Update packets, Route-refresh packets, Keeplive packets, and Notification packets.
F . The status of both BGP peers must be OpenConfirm. The BGP neighbor relationship can be established. The two parties exchange routing information through Update packets.

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Answer: A