CompTIA Network+ (N10-008) — Question 243

Which of the following ports should be used to securely receive mail that is synchronized across multiple devices?

Answer options

• A. 25
• B. 110
• C. 443
• D. 993

Correct answer: D

Explanation

Port 993 is used for IMAP over SSL/TLS, which provides a secure method for receiving email that synchronizes across multiple devices. In contrast, port 25 is typically used for SMTP (sending mail), port 110 is for unencrypted POP3, and port 443 is primarily used for HTTPS traffic, not email.