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Table Of Contents  CertiGuide to Security+
 9  Glossary

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U-V

Virus

Software code ranging from annoying to destructive and self-replicating. May be a macro virus, a virus that destroys the information in the boot sector of a drive or other form

http://searchsecurity.techtarget.com/sDefinition/0,,sid14_gci213306,00.html

VLAN (Virtual Local Area Network)

A local area network not based in geography. Computers spread across a large distance yet still on the same sub-network

http://searchnetworking.techtarget.com/sDefinition/0,,sid7_gci213299,00.html

VPN (Virtual Private Network)

Creating a private network within a public network using encryption. Refer to VLAN

http://searchnetworking.techtarget.com/sDefinition/0,,sid7_gci213324,00.html


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