What is a primary function that a web server must perform?

A primary function of a web server is to receive and process user requests. When a user types a URL into their web browser or clicks on a link, their browser sends an HTTP request to the web server hosting the website. The server must then interpret this request properly, determine what resource is being requested (such as HTML pages, images, or scripts), and fetch that content from the server or the appropriate location.

This processing may also involve executing scripts, querying databases for dynamic content, and assembling responses that can be sent back to the user’s browser. The ability to effectively receive and process these requests is essential for the functioning of the web, as this interaction forms the foundation of communication between the user's device and the server hosting the web content.

Other functions mentioned, such as transmitting end-user requests, displaying results, and providing an end-user interface, are either not primary functions of the web server itself or involve additional layers of technology and user interaction not handled directly by the web server. The server's main role is focused on the request/response cycle, which is critical for delivering content to users on the internet.