A common method of accessing computers remotely that uses port 23 is known as?

LDAP (Lightweight Directory Access Protocol) uses port 389 and is used for accessing and managing directory services, not remote computer control.

RDP (Remote Desktop Protocol) uses port 3389 and is Microsoft's graphical remote access protocol, not port 23.

Telnet uses TCP port 23 and allows users to remotely access and control another computer via a command-line interface. It is one of the oldest remote access protocols, predating SSH, and transmits all data including credentials in plaintext, which is why it has largely been replaced by SSH for secure environments.

FTP (File Transfer Protocol) uses ports 20 and 21 for file transfers between systems, not for remote terminal access.