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D.  Short answer type questions.

                      1.    List out any three sources through which your computer can get infected
                            by a virus.


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                      2.    Name any three antivirus software.


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                 E.  Long answer type questions.

                      1.    Write any two harms caused by a computer virus.

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                      2.    What is a computer virus? Name any one virus.

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                      3.    How will you prevent your computer from getting infected by a virus?
                            Write any two ways.


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                                                      Mind Boggler


                                                                                                       Subject Enrichment
                 A.  Choose the correct word and complete the sentence.

                      1.    Code Red is a ............................. (human/computer) virus.


                      2.    An infected computer system will ............................. (increase/decrease) the
                            size of infected files.

                      3.    ............................. (virus/antivirus) does not let the virus copy itself on our
                            computer system.




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