CompTIA: Advanced Security Practitioner (CASP) Exam Prep

Answer: A - Tunneling allows a network to make a secure connection to another network through the Internet or another network. Tunnels are usually secure and present themselves as extensions of both networks.

Key Takeaway: Tunneling refers to the transmission of data intended for use only within a private, usually corporate, network through a public network. During this transmission, the routing nodes in the public network are unaware that the transmission is part of a private network. It is accomplished by encapsulating the private network data and protocol information within the public network transmission units so that the private network protocol information appears as regular data to the public network. Tunneling allows the use of the Internet, which is a public unsecured network, to convey secure data on behalf of a private network.