FUNDAMENTALS OF COMPUTER

Detailed explanation-1: -A firewall is a system that is designed to protect your private network from unauthorised access. The firewall does so by filtering the information that comes in from the internet. With the information the firewall has available, it blocks unauthorised access and allows authorised access.

Detailed explanation-2: -To start, a firewalled system analyzes network traffic based on rules. A firewall only welcomes those incoming connections that it has been configured to accept. It does this by allowing or blocking specific data packets-units of communication you send over digital networks-based on pre-established security rules.

Detailed explanation-3: -A firewall is a device that has a network protection application installed to safeguard the network from intentional or unintentional intrusion. A firewall sits at the junction point or gateway between the two networks, usually a private network and a public network such as the Internet.

Detailed explanation-4: -A firewall acts as a gateway that passes data between the networks. A firewall acts as a barrier when the firewall blocks the free passage of data to and from the network. The firewall requires a user on the internal network to log in to the firewall system to access hosts on remote networks.

Detailed explanation-5: -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.