FUNDAMENTALS OF COMPUTER

Detailed explanation-1: -A firewall is a system designed to prevent unauthorized access to or from a private network. You can implement a firewall in either hardware or software form, or in a combination of both. Firewalls prevent unauthorized internet users from accessing private networks connected to the internet, especially intranets.

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: -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: -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-5: -Firewalls protect against cyber attacks by blocking malicious traffic.