CompTIA A+ Core 1 (220-1101) — Question 300

Which of the following ports allows for secure communications?

Answer options

• A. 20
• B. 22
• C. 23
• D. 25

Correct answer: B

Explanation

Port 22 is used for secure communications, primarily through SSH (Secure Shell). Ports 20, 23, and 25 are associated with FTP and Telnet or SMTP, respectively, which do not provide encryption and therefore are not secure.