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Question:

What solution may be utilized as a secure alternative for telnet if a new helpdesk employee at your organization asks why he can't telnet to any of the devices? You're telling him that telnet isn't really secure?

A SSH
Explaination

Because telnet is not extremely secure, SSH has mostly supplanted telnet for network communication. SSH is a terminal-based application that does not have a graphical user interface. Port 22 is used by SSH.