Question

which type of security control is a firewall? a physical b administrative c corrective d technical

Explanation:

A firewall is a software - or hardware - based network security system that monitors and controls incoming and outgoing network traffic based on predetermined security rules. It is a technical measure for security, not a physical (like locks on doors), administrative (like policies), or corrective (like fixing a security breach after it occurs) control.

Answer:

D. Technical