Banking Computers Science NIACL Assistant Class-III Cadre Exam Held on 17-01-2015

  • question_answer
    One security method is encryption. But encryption does nothing to keep digital pests and hackers out. To accomplish this goal, we need

    A)  Router 

    B)  Bridges

    C)  Hubs   

    D)  Anti-virus

    E)  Firewalls

    Correct Answer: E

    Solution :

    [e] A firewall is a network security system, either hardware or software based, that controls incoming and outgoing network traffic based on a set of rules. It is frequently used to prevent unauthorized Internet users from accessing private networks connected to the Internet. It analyzes the data packets and determines whether it should be allowed through or not.


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