What is a VPN?

A VPN, or Virtual Private Network, is designed to create a secure and encrypted connection over the internet. It serves to protect the user's data from prying eyes, especially when using public Wi-Fi networks. By encrypting the data that travels between the user’s device and the VPN server, it ensures that sensitive information remains confidential and secure from hackers or other entities that might intercept the data. Additionally, VPNs can help users mask their IP addresses, providing an extra layer of privacy and enabling access to region-restricted content.

The nature of a VPN's functionality is what distinguishes it from the other options, which do not pertain to the concept of secure connections over the internet. For instance, while some advanced network protocols might contribute to data transfer speeds, they do not inherently provide the privacy and security aspects that a VPN offers. Similarly, web hosting services pertain to the storage of websites on servers, and community networks for game enthusiasts focus on social connectivity rather than security. Thus, the definition provided in the correct answer accurately highlights the primary purpose and operation of a VPN.