The primary role of the firewall is to: block unauthorized access to and from the system. quarantine any malware until it can be safely removed from the system. shut down the system when someone makes an unauthorized attempt to access it. allow specific authorized access to the system.

block unauthorized access to and from the system.

Explanation:

The firewall is basically a system designed to prevent unauthorized access to or from a private network. A firewall can be implement in either hardware or software form, or a combination of both. Firewalls prevent unauthorized internet users from accessing private networks connected to the internet, especially intranets.

Its primary fuction is simply to block unauthorized access to and from the system.