CompTIA Network+ (N10-008) — Question 538

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 communication protocol for transferring web data. In contrast, ports 20 and 23 are associated with FTP and Telnet, respectively, neither of which provide security. Port 445 is used for SMB, which also lacks built-in security features.