Which command provides security on the console of a router?

Which command provides security on the console of a router?

• A. Router(config)# banner motd #
• B. Router(config-line)# password class
• C. Router(config)# enable secret
• D. Router(config)# service password-encryption

Answer: (B)

The command that enhances security on the console of a router is the one that sets a password for accessing the console line, ensuring that only authorized users can gain access. By configuring a password for the console line, you establish a barrier against unauthorized access attempts. This is essential for maintaining the integrity and security of the router. Setting up a console password prompts any user who tries to access the router through the console to enter the correct password, thereby controlling who has access to the device's configuration interface. This practice is a fundamental security measure in network management. Other commands provided in the options play different roles in router security but do not specifically address controlling access to the console line in the same direct manner. For example, setting a banner message serves to inform users about legal use guidelines, while enabling secret or service password encryption relates to securing the privilege mode password and encrypting stored passwords but does not specifically secure the console access itself.

The command that enhances security on the console of a router is the one that sets a password for accessing the console line, ensuring that only authorized users can gain access. By configuring a password for the console line, you establish a barrier against unauthorized access attempts. This is essential for maintaining the integrity and security of the router.

Setting up a console password prompts any user who tries to access the router through the console to enter the correct password, thereby controlling who has access to the device's configuration interface. This practice is a fundamental security measure in network management.

Other commands provided in the options play different roles in router security but do not specifically address controlling access to the console line in the same direct manner. For example, setting a banner message serves to inform users about legal use guidelines, while enabling secret or service password encryption relates to securing the privilege mode password and encrypting stored passwords but does not specifically secure the console access itself.