Question

what are functions of firewall in computer class 8 NCERT​

Answer 1

A firewall is a network security device that monitors incoming and outgoing network traffic and decides whether to allow or block specific traffic based on a defined set of security rules. Firewalls have been a first line of defense in network security for over 25 years.


A firewall is a protective measure that safeguards an individual's or company's computer network. It provides two basic security functions including packet filtering, which inspects traffic at the packet level, and acting as an application proxy, providing security measures at the application level.