CompTIA Security+ Question I-74

Signed digital certificates used to secure communication with a web server are MOST commonly associated with which of the following ports?

A. 25
B. 53
C. 143
D. 443

Answer: D

* HTTPS authenticates the website and corresponding web server with which one is communicating. HTTPS makes use of port 443.

Incorrect Options:

A: Port 25 is used by Simple Mail Transfer Protocol (SMTP) for routing e-mail between mail servers.

B: Port 53 is used by Domain Name System (DNS).

C: Port 143 is used by Internet Message Access Protocol (IMAP) for the management of email messages.