A secure tunnel created between two endpoints connected via an unsecure transport network (typically the Internet) is a?

A secure tunnel created between two endpoints connected via an unsecure transport network (typically the Internet) is a?

• A. VPN
• B. tunnel
• C. remote access
• D. IPsec

Answer: (A)

A VPN is the secure channel that spans an untrusted network like the Internet. It creates an encrypted tunnel between two endpoints, so the data moving between them is confidential and authenticated even though the transport network is public. IPsec is a common way to implement a VPN, providing the encryption and authentication for the tunnel, but the overall concept you’re describing—the private, protected path across a public network—is a VPN. The term tunnel by itself is too generic, and remote access refers to who is connecting rather than the method of securing the transmission.

A VPN is the secure channel that spans an untrusted network like the Internet. It creates an encrypted tunnel between two endpoints, so the data moving between them is confidential and authenticated even though the transport network is public. IPsec is a common way to implement a VPN, providing the encryption and authentication for the tunnel, but the overall concept you’re describing—the private, protected path across a public network—is a VPN. The term tunnel by itself is too generic, and remote access refers to who is connecting rather than the method of securing the transmission.