Multiple choice

Refer to the exhibit. The configuration steps that are listed in the exhibit have been entered in switch S1 via the console. Subsequent attempts to telnet to the switch are not successful. What is causing the problem?

  1. The switch must be configured with SSH version 1.

  2. The transport input command must specify Telnet access.

  3. The RSA keys must be returned to zero before SSH will permit Telnet access.

  4. The IP domain-name command must also be entered in line configuration mode for the VTY lines.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The transport input command on VTY lines controls which protocols are allowed for remote access. If it is set to only SSH (as implied by the SSH configuration), Telnet will be blocked. To permit both SSH and Telnet, the command must explicitly allow both protocols with transport input ssh telnet.

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