MANAGEMENT

Detailed explanation-1: -A firewall is a special type of fire separation assembly commonly constructed of non-combustible materials that subdivides a building or separates adjoining buildings. A firewall is the ultimate defense against the spread of fire.

Detailed explanation-2: -A Firewall is a network security device that monitors and filters incoming and outgoing network traffic based on an organization’s previously established security policies. At its most basic, a firewall is essentially the barrier that sits between a private internal network and the public Internet.

Detailed explanation-3: -The correct answer is A system that prevents unauthorized access to a private network. A firewall is a system that prevents unauthorized access to a private network.