FUNDAMENTALS OF COMPUTER

Detailed explanation-1: -Firewalls are network security systems that prevent unauthorized access to a network. It can be a hardware or software unit that filters the incoming and outgoing traffic within a private network, according to a set of rules to spot and prevent cyberattacks. Firewalls are used in enterprise and personal settings.

Detailed explanation-2: -Even though a firewall is only one of the many components of your cyber security strategy, they’re the first line of defence against cyber threats such as malware and hackers.

Detailed explanation-3: -At its most basic, a firewall is essentially the barrier that sits between a private internal network and the public Internet. A firewall’s main purpose is to allow non-threatening traffic in and to keep dangerous traffic out.

Detailed explanation-4: -Firewalls protect against cyber attacks by blocking malicious traffic.

Detailed explanation-5: -The term firewall originally referred to a wall intended to confine a fire within a line of adjacent buildings. Later uses refer to similar structures, such as the metal sheet separating the engine compartment of a vehicle or aircraft from the passenger compartment.