Which functionality does the TACACS single-connection keyword provide to AAA services?
- maintains a single UDP connection for the life of the session
- enhances the performance of the TCP connection
- encrypts the data transfer between the TACACS+ server and the AAA client
- allows the use of differing keys between the TACACS+ server and the AAA client
Explanation: The single-connection keyword enhances TCP performance with TACACS+ by maintaining a single TCP connection for the life of the session. Without the single-connection keyword, a TCP connection is opened and closed per session.
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