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Which of the following is used to create a mirror image of entire hard disk?
a) disk burning    
b) spyware
c) drive imaging
d) none of these


c

Which of the following is used to detect problems of hardware and software?
a) spyware           
b) diagnostic utility
c) file compressor               
d) none of these


b

A program that is placed on computer without user knowledge?
a) trojan horse                     
b) virus
c) spyware                           
d) none of these

c