What ports are used by HTTP and HTTPS?

• A. HTTP uses port 8080; HTTPS uses port 8443
• B. HTTP uses port 80; HTTPS uses port 443
• C. HTTP uses port 21; HTTPS uses port 22
• D. HTTP uses port 53; HTTPS uses port 53

Answer: (B)

HTTP uses port 80 and HTTPS uses port 443 because these are the standard, well-known ports assigned for these protocols. Browsers and servers expect these defaults, with HTTP being plain text and HTTPS adding TLS/SSL encryption on top of HTTP. You might see different ports like 8080 or 8443 used in certain setups, but in those cases you have to specify the port in the URL (for example, http://example.com:8080). The other numbers shown correspond to other services (FTP/SSH, DNS), not HTTP or HTTPS. So the best pairing is 80 for HTTP and 443 for HTTPS.