What type of computer network allows remote users to access a private network securely?

A Virtual Private Network (VPN) is designed specifically to allow remote users to connect securely to a private network over the internet. It achieves this by creating a “tunnel” through which data is encrypted, ensuring that sensitive information can be transmitted securely, even over less secure public networks. This capability is particularly important for organizations that need their employees to access internal resources, such as file servers or application systems, from remote locations while maintaining data confidentiality and integrity.

In contrast, a Local Area Network (LAN) is limited to a small geographic area, like a single building or campus, and does not provide remote access capabilities in the same manner a VPN does. A Wide Area Network (WAN) connects larger areas but does not inherently include secure remote access, as it can encompass various connection types, including less secure protocols. A Metropolitan Area Network (MAN) connects multiple LANs within a specific geographic area, such as a city, and, similar to LANs and WANs, does not typically offer the specialized security features of a VPN for remote connections. Thus, the VPN is the only option that specifically addresses the need for secure remote access to a private network.