Identify the correct definition of Firewall.
- A. A technique that maps multiple private IP addresses to a single public IP address.
- B. A network security device or software that monitors and filters incoming and outgoing traffic based on rules. ✓
- C. A unique hardware identifier assigned to a network interface controller.
- D. A unique numerical label assigned to each device connected to a computer network.
Correct answer
B. A network security device or software that monitors and filters incoming and outgoing traffic based on rules.
Explanation
Firewall refers to a network security device or software that monitors and filters incoming and outgoing traffic based on rules.