What is a virtual private network (VPN) and its purpose?

What is a virtual private network (VPN) and its purpose?

• A. A Secure Tunnel Over A Public Network That Ensures Privacy And Encrypted Communication
• B. A Protocol For Email Encryption
• C. A Private Cloud Service
• D. A Network That Uses Virtualization To Host Multiple Servers

Answer: (D)

A VPN provides a secure tunnel over a public network that ensures privacy and encrypted communication. It encrypts your data from your device to the VPN server, so anyone on the same network or along the path can’t read or tamper with it, and it can also mask your IP address to help keep your activity private and enable access to remote networks as if you were locally connected. The other options describe unrelated concepts: email encryption protocols secure email content, a private cloud service refers to private cloud hosting, and virtualization to host multiple servers is about running several virtual machines on one physical system. None of those describe the secure, private channel formed over a public network that a VPN provides.

A VPN provides a secure tunnel over a public network that ensures privacy and encrypted communication. It encrypts your data from your device to the VPN server, so anyone on the same network or along the path can’t read or tamper with it, and it can also mask your IP address to help keep your activity private and enable access to remote networks as if you were locally connected. The other options describe unrelated concepts: email encryption protocols secure email content, a private cloud service refers to private cloud hosting, and virtualization to host multiple servers is about running several virtual machines on one physical system. None of those describe the secure, private channel formed over a public network that a VPN provides.