COMPUTER NETWORKING

Detailed explanation-1: -Not only does a firewall block unwanted traffic, it can also help block malicious software from infecting your computer.

Detailed explanation-2: -A firewall is a security system that filters network traffic and prevents unauthorized access to your network. Firewalls protect your computer from malicious software infections as well as block unwanted traffic.

Detailed explanation-3: -Firewall Definition A firewall is a security system designed to prevent unauthorized access into or out of a computer network. Firewalls are often used to make sure internet users without access are not able to interface with private networks, or intranets, connected to the internet.

Detailed explanation-4: -A firewall is a network security device that prevents unauthorized access to a network. It inspects incoming and outgoing traffic using a set of security rules to identify and block threats. A firewall can be physical hardware, digital software, software as a service (SaaS) or a virtual private cloud.