What is the purpose of a VPN versus a standard remote access connection?

• A. A VPN creates a direct, unencrypted connection to a corporate network.
• B. A VPN substitutes for a firewall by blocking all inbound traffic.
• C. A VPN creates an encrypted tunnel for secure remote access over untrusted networks.
• D. A VPN eliminates the need for firewalls.

Answer: (C)

The main idea is that a VPN provides a secure way to reach a private network from outside by creating an encrypted tunnel over an untrusted network. When you connect, your device and the corporate VPN gateway establish a protected channel so all the data that travels between them is encrypted, authenticated, and protected from tampering. This means remote users can access internal resources as if they were on the local network, without exposing sensitive traffic to eavesdroppers on the public network. A standard remote access connection, on the other hand, might not encrypt traffic or provide the same level of tunnel-based protection, leaving data exposed or requiring additional security measures at the application level. It’s also important to note that a VPN doesn’t replace a firewall or the need for security devices and policies; firewalls and segmentation are still essential to protect network resources even when a VPN is in use.