CompTIA Network+ (N10-009) — Question 389

Which of the following ports is a secure protocol?

Answer options

• A. 20
• B. 23
• C. 443
• D. 445

Correct answer: C

Explanation

Port 443 is used for HTTPS, which is a secure version of HTTP, making it the correct answer. Ports 20 and 23 are associated with FTP and Telnet respectively, both of which are not secure. Port 445 is used for SMB, which also does not provide encryption by default.