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What is firewall

Last response: in Systems
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July 17, 2012 10:11:35 AM

What is a firewall, and how does it differ from an anti-virus program?

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July 17, 2012 10:27:38 AM

Your in the wrong section for this kind of question, but heres an answer anyway.

A firewall is a program that detects incoming and outgoing connections from your PC (whether it be too/from the internet or LAN) and compares it to a list of acceptable connections. If it doesn't come up positive, it blocks the connection. This is to prevent people/files from entering your PC or stopping unauthorized programs (such as malware) from communicating data from the computer to the internet.

A firewall only deals with incoming/outgoing connections, once a virus enters the system, it wont attempt to destroy or contain it. That's where Anti-Virus programs come in.
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July 20, 2012 10:16:09 AM

Best answer selected by vikas186.
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July 20, 2012 10:17:09 AM

thank you and sorry 4 d mistake
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