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A. Tick (a) the correct answer.
1. Viruses destroy ____________ data of our computer system.
a) small b) large c) no
2. ______________ is a virus that comes as if it is a friendly program.
a) Worm virus b) Trojan virus c) e-mail virus
3. ______________ virus adds a virus code to the regular programming code within program files.
a) Trojan b) Boot-sector c) File infector
4. _______________ is used to remove virus from computer system.
a) Antivirus b) Worm virus c) None of these
B. Fill in the blank.
1. _______________ is a virus that simple replicates itself.
2. _______________ Virus attaches itself to the boot see for of the disk.
3. A _______________ on affect our computer badly and destroy all the date stored in ti.
4. _______________ Virus was first discovered at the University of Jerusalem is 1978.
5. _______________ Virus adds a virus code to the regular programming code with in program fils.
C. Define the following tools.
1. Trojan virus
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2. Worm
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3. File infector
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4. Boot-sector virus
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