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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.
Know About Computer Viruses 21

