SSC IMD SA 2017 – Question 183

A __________ is a program running on a server machine that accepts requests from a web browser and sends back results in the form of HTML documents.

• HTML
• HTTP
• Web server
• Web browser

Detailed Explanation:

The correct answer is c) Web Server (वेब सर्वर).

In the client-server architecture of the World Wide Web:

• A Web Server is a specialized software program (and dedicated server machine) running in the background that listens for incoming network connections on port 80 (HTTP) or port 443 (HTTPS).
• It accepts client requests (typically initiated by a web browser), processes requested URLs, and serves back the appropriate web resources (HTML documents, images, stylesheets, and scripts) in HTTP response packets. Prominent examples of web servers include Apache HTTP Server, Nginx, Microsoft IIS, and LiteSpeed.

Other Options Explained:

• HTML: HyperText Markup Language — the standard markup language used to structure web pages.
• HTTP: HyperText Transfer Protocol — the application-layer communication protocol used for transferring data between client and server.
• Web Browser: The client-side software application (e.g., Google Chrome, Mozilla Firefox) used to request, parse, and render HTML pages.