What is a VPN primarily used for in networking?

A VPN, or Virtual Private Network, is primarily used to create a secure connection over a public network. This is achieved by establishing an encrypted tunnel between the user's device and the VPN server, which protects the data being transmitted from eavesdropping and interception. This encryption ensures that sensitive information, such as personal data or business communications, remains confidential and secure, even when using unsecured networks like public Wi-Fi.

The correct answer underscores the primary function of VPNs—security. By encrypting data, VPNs safeguard users' privacy and help them maintain anonymity while browsing online. This capability is especially valuable for remote workers accessing corporate networks, travelers using public internet connections, and anyone concerned about online privacy.

While there are other features that some VPNs may provide, such as potential performance improvements in specific scenarios, the core purpose remains security over public networks. Therefore, the identification of a VPN as a tool for creating secure connections is a crucial aspect of its functionality in the realm of networking.