Accessing the console of a device can be achieved by using the command that specifically targets the console line. The command "Line con 0" is utilized to enter line configuration mode for the console port, allowing you to configure settings that pertain directly to console access.
By entering this command, a network administrator gains the ability to configure parameters such as the console password, timeouts, and other settings relevant to console line behavior. This is essential for establishing control over the console access to the device.
The other commands—like "configure terminal," which is used to enter global configuration mode, "show running-config," which displays the current configuration of the device, and "interface g0/1," which is used to enter interface configuration mode for a specific interface—do not directly provide access to the console line itself. Therefore, accessing the console follows directly from the "Line con 0" command, making it the appropriate choice for obtaining console access.