Which of the following aaa accounting commands should be used to enable logging of both...

In order to enable logging of both start and stop records for user terminal sessions on the router, the aaa accounting exec start-stop tacacs+ command should be used. The exec option performs accounting for EXEC shell sessions. Answer: B is incorrect. The aaa accounting system none tacacs+ command disables accounting services on a specific interface for all system-level events that are not related with users such as reload. Answer: C is incorrect. The aaa accounting connection start-stop tacacs+ command is used to enable logging of both start and stop records for all outbound connections that are established from the NAS (Network Access Server), such as Telnet, local-area transport (LAT), TN3270, packet assembler and disassembler (PAD), and rlogin. Answer: A is incorrect. The aaa accounting auth proxy start-stop tacacs+ command is used to enable logging of both start and stop records for all authenticated proxy user events.