What is the primary purpose of a VPN?

The primary purpose of a VPN (Virtual Private Network) is to securely connect remote users to a network. A VPN creates an encrypted tunnel through which data can be transmitted over the internet securely, enabling remote users to access resources on a local network as if they were connected locally. This secure connection helps protect sensitive information from potential threats, such as eavesdropping and unauthorized access, making it especially useful for businesses allowing employees to work from remote locations.

Other options, while related to network functionality, do not capture the main purpose of a VPN. File transfer over the internet is a general capability of data networks and can occur without the need for a VPN. Similarly, directing network traffic is a function managed by routers and switches, focusing on how data packets travel through networks rather than securing connections. Assigning IP addresses is a role of DHCP (Dynamic Host Configuration Protocol) and does not pertain to the secure connectivity that a VPN provides. Thus, the focus of a VPN on securing remote access is what distinguishes it from these other network activities.