General Knowledge - Technology - Discussion

12. 

What is a spider?

[A]. A computer virus
[B]. A program that catalogs Web sites
[C]. A hacker who breaks into computer systems
[D]. An application for viewing Web sites

Answer: Option B

Explanation:

Spiders are also referred to as "bots" or "crawlers," and constantly scan the Internet for new and updated Web sites.

Ajit said: (Feb 23, 2016)  
Can any one explain more about this?

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