Question
A technician is configuring a server that requires secure remote access. Which of the following ports should the technician use?
- A. 21
- B. 22 Correct
- C. 23
- D. 443
Explanation
Port 22 is used by SSH, which encrypts the remote session and is the standard secure remote-access protocol for servers. Port 21 is FTP and port 23 is Telnet, both of which send credentials in clear text. Port 443 is HTTPS, used for secure web traffic rather than remote command-line administration.
