What does a VPN provide in terms of telecommunications?

A VPN, or Virtual Private Network, ensures secure and encrypted connections over the Internet. This is crucial for protecting sensitive data when transmitted between devices, especially when using public networks where data can easily be intercepted. By encrypting the data, a VPN helps maintain confidentiality and integrity, ensuring that unauthorized parties cannot access the information being shared.

The primary purpose of a VPN is to create a private tunnel through which your online data is transmitted, safeguarding it from prying eyes such as hackers or government surveillance. This functionality is particularly valuable for businesses that need to secure remote access to their internal networks or for individuals who wish to protect their online activity.

The other options involve misconceptions about what a VPN can do. While a VPN can enhance privacy and security, it does not inherently increase bandwidth for users, improve voice call quality, or replace the need for a firewall—each of which serves different roles in network management and security.