Question

what is a virtual private network?
a global system of networks
a network confined to a limited area
a secure network within a larger network
a network accessible only to members

Explanation:

A Virtual Private Network (VPN) creates a secure network within a larger network (such as the public internet) by encrypting data and masking the user's IP address. It is not the global system of networks (the internet), not just a network confined to a limited area like a local - area network, and not just a network accessible only to members in the traditional sense.

Answer:

C. a secure network within a larger network