What is VPN ?
A virtual private network (VPN) is a network that uses a public telecommunication infrastructure, such as the Internet, to provide remote offices or individual users with secure access to their organization's network. A VPN can connect multiple sites over a large distance just like a Wide Area Network (WAN).
Advantage of VPN
- Cost benefits
- Improved security
- Choice of access speed and technology
Disadvantage of VPN
- Less Bandwidth than Dedicated Line
- availability and performance are difficult to control
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