A network technician opens PuTTY to connect to a Cisco switch. The technician sets PuTTY with the IP address of the switch and port 23. However, connections to the switch are always declined. What is a possible cause for this issue?

IT Exam Items RepositoryCategory: CCNPA network technician opens PuTTY to connect to a Cisco switch. The technician sets PuTTY with the IP address of the switch and port 23. However, connections to the switch are always declined. What is a possible cause for this issue?

A network technician opens PuTTY to connect to a Cisco switch. The technician sets PuTTY with the IP address of the switch and port 23. However, connections to the switch are always declined. What is a possible cause for this issue?

  • The transport input ssh command has been configured on vty lines.
  • Only Telnet is allowed to connect to the switch.
  • The domain name of the switch should be used in PuTTY.
  • An ACL is applied on the console port that blocks the PC that the technician uses.

Explanation: Telnet uses TCP port 23 and SSH uses TCP port 22. If vty lines are configured with the transport input ssh command, only SSH connections are allowed.

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