Firewall is a type of ____________.

A. Virus

B. Security threat

C. Worm

D. None of the above इनमे से कोई भी नहीं

Correct Answer is :

D. None of the above

Explanation

A firewall is a type of cybersecurity tool that is used to filter traffic on a network. Firewalls can be used to separate network nodes from external traffic sources, internal traffic sources, or even specific applications.