Which command enters line configuration mode for the console port?

• A. end
• B. line console 0
• C. exit
• D. copy running-config startup-config

Answer: (B)

You’re testing how to reach the specific configuration context for a terminal line. In Cisco IOS, lines like the console have their own configuration mode, allowing you to set things such as password, login, and timeouts just for that line. To enter the console’s configuration mode, you use the command that targets the console line: line console 0. This switches you into line configuration mode for the console port so you can tailor its settings.

Remember, you typically start from privileged EXEC, go into global configuration with configure terminal, and then enter line console 0 to work on the console line. The other commands mentioned perform different actions: end exits configuration back to privileged EXEC, exit moves you up a level or out of a mode, and copy running-config startup-config saves the current configuration.