What does VPN stand for in network security?

VPN stands for Virtual Private Network. This term refers to a technology that creates a secure and encrypted connection over a less secure network, such as the Internet. A VPN is used to protect private web traffic or to connect remote users or offices to the main business network in a secure manner.

The concept of "private" in the term highlights that the communication is not open to the public and is shielded from potential eavesdroppers. This is critical for ensuring the confidentiality and integrity of data transmitted over public networks. In essence, a VPN allows users to send and receive data while maintaining privacy and security.

The other choices do not accurately represent the intended purpose or functionality of a VPN. For instance, while "Virtual Public Network" might imply some degree of public access, it contradicts the primary function of providing a secure environment. "Virtual Protected Network" and "Variable Private Network" also do not align with standard terminology recognized in the field of network security. Understanding the correct definition helps in grasping the essential role of VPNs in protecting data during transmission.