<span>Virtual Private Network employs a method called "tunneling" in which each packet from the sending computer is encapsulated within another packet before being sent over the internet.Tunneling protocol allows a network user to access or provide a network service that the underlying network does not support or provide directly</span>
A variable is a name associated with a data value; we say that the variable "stores" or "contains" the value. Variables allow us to store and manipulate data in our programs.
