Tuesday, January 30, 2007

Notes 7 layer model ?'s

What is netstat command for?

*The NETSTAT command is designed to help you quickly determine whether or not TCP/IP is working correctly. If TCP/IP is having problems, then NETSTAT can help you to determine where the problem is.


What is VPN?

*A virtual private network (VPN) is a private communications network often used within a company, or by several companies or organizations, to communicate confidentially over a public network.


What are 7 layers of OSI model?

*Application
*Presentation
*Session
*Transport
*Network
*Data-link
*Physical

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