Which command should be applied to a Cisco router's VTY lines to allow only encrypted remote management sessions?
transport input all
password cisco
transport input ssh
login local
To ensure that a Cisco router's VTY lines accept only encrypted remote management sessions, the command transport input ssh is used. This command restricts the VTY lines to accept only SSH connections, which are encrypted, and rejects unencrypted protocols like Telnet. Using transport input all would allow all types of connections, including insecure ones. The command login local enables local authentication but doesn't specify the encryption of the remote sessions. Setting a password with the password command is necessary for authentication but doesn't enforce the use of encrypted connections.
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