FUNDAMENTALS OF COMPUTER

Detailed explanation-1: -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-2: -A firewall acts as a barrier or filter between your computer and another network such as the internet. You could think of a firewall as a traffic controller.

Detailed explanation-3: -A network firewall is a device that acts as a barrier to keep destructive forces away from computers on a network behind the firewall. A network firewall is similar to a physical firewall that keeps a fire from spreading from one area to the next. Firewalls can help protect against a wide range of security threats.

Detailed explanation-4: -Firewalls can also prevent malicious software from accessing a computer or network via the internet. Firewalls can be configured to block data from certain locations (i.e., computer network addresses), applications, or ports while allowing relevant and necessary data through.