A) The physical boundary of network
B) A web browsing software
C) An operating system of computer network
D) A system designed to increase the bandwidth
E) None of these
Correct Answer: C
Solution :
[c] In computing, a firewall is a piece of hardware and/or software which functions in a networked environment to prevent some communications forbidden by the security policy, analogous to the function of firewalls in building construction. A firewall has the basic task of controlling traffic between different zones of trust.
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