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Define firewall.

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- Firewall is a piece of hardware or software which functions in a networked environment to prevent some communications forbidden by the security policy.
- The purpose of a firewall is to keep bad thing outside a protected firewall implement a security policy. It might permit limited access from in or outside the network perimeters or from certain users or for certain activity.

Kavungya answered the question on May 10, 2019 at 13:49

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Define firewall.

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