Question

    Key function of a firewall is

    A Moving Correct Answer Incorrect Answer
    B Monitoring Correct Answer Incorrect Answer
    C Deleting Correct Answer Incorrect Answer
    D Copying Correct Answer Incorrect Answer

    Solution

    Firewallsare systems which protect networks or network devices, such as industrial PCs, control systems, cameras, etc., from unauthorized access by preventing network traffic to or from these systems. The fundamental technicalfunctionof anyfirewallis to filter packets.

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