A software-based firewall is dedicated to examining and blocking internet traffic.
Step-by-step explanation:
If we are seeking the answer we find that in computer world, a firewall is a network security system which is available for monitoring and controlling of entire incoming and outgoing network traffic, depended on predefined security rules.
In addition a firewall typically forms a barrier or wall between a trusted or known internal network and untrusted or unknown external network like the Internet.
We also get that a firewall is often divided into two category which are network firewall and host-based firewall.