What does VPN stand for in the context of networking?

VPN stands for Virtual Private Network. This term signifies a technology that creates a secure and encrypted connection over a less secure network, such as the Internet. Essentially, a VPN allows users to send and receive data securely and privately, shielding their online activities from potential eavesdroppers and ensuring that sensitive information remains protected.

By using a VPN, users can establish a private network over a public network infrastructure. This is particularly useful for individuals who want to maintain their privacy while browsing, as it helps to anonymize their IP address and encrypt their online traffic. This way, VPNs are commonly used by remote workers to securely connect to their company's network or by individuals seeking to access websites or services that might be restricted in their geographic location.

The other options, while seemingly plausible, do not accurately describe what VPN stands for or its function in networking. The term "Protected" in the first option implies a security aspect but does not capture the essence of privacy; "Variable" in the third option does not correlate to the established meaning of VPN; and "Protocol" in the last option suggests a focus on specific network rules rather than the broader concept of creating private, secure connections.