Which protocol is used for transmitting web pages over the Internet?

• A. HTTP
• B. FTP
• C. SMTP
• D. SSH

Answer: (A)

Web pages are delivered over the Internet using HTTP, the Hypertext Transfer Protocol. In a typical browser-server interaction, the browser (the client) sends an HTTP request for a page, and the server responds with the page content and status information. This request/response model is designed specifically for retrieving and transferring web resources like HTML files, images, and scripts. HTTP operates by default on port 80, and in its secure form (HTTPS) it runs over TLS on port 443, providing encryption for the data in transit. The other protocols mentioned have different purposes: FTP is for transferring files, SMTP handles email, and SSH provides secure remote login; none of them are the standard method for delivering web pages to a browser.