Which port is utilized for hypertext transfer protocol (HTTP)?

Which port is utilized for hypertext transfer protocol (HTTP)?

• A. 80
• B. 21
• C. 110
• D. 443

Answer: (A)

The correct answer is associated with the standard port number used for hypertext transfer protocol (HTTP), which is 80. HTTP is the foundational protocol used for transmitting data on the World Wide Web, allowing users to access web pages and other resources over the internet. Port 80 is designated for unsecured HTTP traffic, making it a crucial part of web communication. When a browser requests a web page using an HTTP URL, it uses port 80 by default, unless specified otherwise in the URL. This is why port 80 is universally recognized for HTTP traffic. Other ports like 21, 110, and 443 have different associations—21 is used for File Transfer Protocol (FTP), 110 is for Post Office Protocol version 3 (POP3) for email retrieval, and 443 is utilized for HTTPS, which is the secure version of HTTP. Thus, port 80 is specifically recognized as the standard port for HTTP communications.

The correct answer is associated with the standard port number used for hypertext transfer protocol (HTTP), which is 80. HTTP is the foundational protocol used for transmitting data on the World Wide Web, allowing users to access web pages and other resources over the internet. Port 80 is designated for unsecured HTTP traffic, making it a crucial part of web communication.

When a browser requests a web page using an HTTP URL, it uses port 80 by default, unless specified otherwise in the URL. This is why port 80 is universally recognized for HTTP traffic. Other ports like 21, 110, and 443 have different associations—21 is used for File Transfer Protocol (FTP), 110 is for Post Office Protocol version 3 (POP3) for email retrieval, and 443 is utilized for HTTPS, which is the secure version of HTTP. Thus, port 80 is specifically recognized as the standard port for HTTP communications.