The router is physically located in a server room that requires an ID card for access. You backed up the router configuration to a remote location in an encrypted file. You access the router configuration interface from your notebook computer using a Telnet client with the username admin and the password admin. You used the MD5 hashing algorithm to protect the password. What should you do to increase the security of this device

Use an SSH client to access the router configuration.

Change the default administrative username and password

Explanation:

Based on the information given, in order to increase the security of the device, it's vital to use an SSH client to access the router configuration. The SSH client refers to the program that helps in establishing an authenticated and secure SSH connections to the SSH servers. It's vital for operating network services securely over a network that's unsecured.

Also, the default administrative username and password should be changed to a more secure username and password which can't be easily known by a third party.

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