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3.  We should not ............................. any e-mail attachment from unknown source.

                     4.  ............................. detects the virus in the computer system.

                 D.  Short answer type questions.
                     1.  List out any three sources through which your computer can get infected by
                        a virus.

                        .........................................................................................................................................................
                     2.  How  do  antivirus  software  developers  help  protect  our  computers  from
                        viruses?

                        .........................................................................................................................................................

                        .........................................................................................................................................................
                 E.  Long answer type questions.

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

                        .........................................................................................................................................................
                        .........................................................................................................................................................

                        .........................................................................................................................................................
                     2.  Write any three symptoms that an infected computer may display.

                        .........................................................................................................................................................

                        .........................................................................................................................................................
                        .........................................................................................................................................................

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

                        .........................................................................................................................................................

                        .........................................................................................................................................................

                                                      Mind Boggler



                                                                                                  21 st
                 A.  Competency-based/Application-based questions.                             Century   #Technology Literacy
                                                                                                 Skills
                     1.   Shahar noticed that his computer is starting up slowly and displaying unusual
                        error messages. What could be causing these issues? Could it be a virus

                        attack? If yes, what type of virus might it be?
                     2.   Arpita finds that her computer is running slower than usual and

                        frequently shows strange pop-up ads. How can she confirm if this
                        is caused by malware, and what steps should she take to secure
                        her system?

                                                                                Know About Computer Viruses          21
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