Which command is used to configure a hostname on the router?

Which command is used to configure a hostname on the router?

• A. Router(config)# banner motd #
• B. Router(config)# hostname CL1
• C. Router(config-line)# password class
• D. Router(config)# ip domain-name

Answer: (B)

The command to configure a hostname on a router is accurately identified as "Router(config)# hostname CL1." This command directly sets the device's hostname to "CL1," which is a crucial step for device identification within a network. Hostnames are essential in network environments, especially for management and troubleshooting purposes, as they allow network administrators to refer to devices in a more human-readable format instead of using complex IP addresses. Using this command changes the router's system prompt to the specified hostname, reflecting the new identity of the device, which aids in easier recognition when accessing multiple routers or switches in a network. The other options serve different purposes. For instance, the banner command is used to configure a Message of the Day (MOTD) banner, which is not related to setting the hostname. The command for setting a password is specific to line configurations and does not impact the hostname at all. The command to set the IP domain name influences DNS functionality but does not assign a hostname to the router itself. Thus, the chosen command effectively meets the requirement for configuring the hostname on the router.

The command to configure a hostname on a router is accurately identified as "Router(config)# hostname CL1." This command directly sets the device's hostname to "CL1," which is a crucial step for device identification within a network. Hostnames are essential in network environments, especially for management and troubleshooting purposes, as they allow network administrators to refer to devices in a more human-readable format instead of using complex IP addresses.

Using this command changes the router's system prompt to the specified hostname, reflecting the new identity of the device, which aids in easier recognition when accessing multiple routers or switches in a network.

The other options serve different purposes. For instance, the banner command is used to configure a Message of the Day (MOTD) banner, which is not related to setting the hostname. The command for setting a password is specific to line configurations and does not impact the hostname at all. The command to set the IP domain name influences DNS functionality but does not assign a hostname to the router itself. Thus, the chosen command effectively meets the requirement for configuring the hostname on the router.