A web server is software for

AAnalysing web traffic

BServing web pages on a user's request ✓ Correct

CCrawling the web

DThe Unix operating system

Correct answer: (B) Serving web pages on a user's request

Explanation

A web server is software that delivers web pages to browsers in response to their requests.

Analysing web traffic is the job of analytics tools, not the serving function itself.

Crawling the web is done by search-engine robots, a different task from serving pages.

The Unix operating system is a platform a server may run on, not the web server software.

A web server listens for HTTP requests and returns the requested files.

Apache and Nginx are widely used web server programs.

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