Virtual Private Networks VPNs

🔵 Vpn is a virtual private network

🔴It is not a physical network

 🔵 It is made using internet and other WANs to transmit data
 
🔴The data remains encrypted throughout the transmission and only decrypted at the destination computer

🔵 The process is called tunnelling as it uses a secure mean to tunnel through a publicly accessed network

🔴Allows organisations to communicate with each other

🔵 Normally consists of LANs that may be remote from each other...
...such as different branches of an organisation

🔴It enables organisations to communicate over a large area

🔵 It is cheaper than creating a conventional WAN

🔴The security used consists of firewalls, encryption, the use of IP security 

                       

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