Which of the following is a type of VPN?

• A. Host-to-host
• B. Remote access
• C. Both A and B
• D. Neither A nor B

Answer: (C)

A VPN creates a secure, encrypted tunnel over an untrusted network to protect data in transit. Two common deployment styles are host-to-host VPNs, which link two devices directly so they can exchange traffic securely, and remote access VPNs, which allow individual user devices to connect to a private network from anywhere. Because both configurations represent legitimate ways to implement VPNs, the option that includes both best fits the concept. Host-to-host focuses on device-to-device connections, while remote access enables individuals to securely reach a network remotely, and many VPN solutions support both models.