Virtual Private Network or VPN
Describe Virtual Private Network (or VPN) and how does it work?
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VPN or virtual private network is employed to join two networks by means internet. VPN employs PPTP (that is, point-to-point tunneling protocol) and other security process to make a secure tunnel on internet.
Mobile telephone networks started with analog technology. Analog cellular networks were known as first generation (1G) networks. Such networks had limited capacity, and were subject to fraud and eavesdropping. Digital cellular telephone networks are known as second generation or 2G networks. Digi
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