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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.
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2. How do antivirus software developers help protect our computers from
viruses?
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E. Long answer type questions.
1. Write any two harms caused by a computer virus.
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2. Write any three symptoms that an infected computer may display.
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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
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

