Many viruses go resident in the memory like a.
A. exe file
B. com file
C. TSR program
D. data file
Viruses can be transmitted by.
A. Booting a PC from an infected mediu.
B. executing an infected program.
C. pirated software and shareware.
D. All of the above.
Common routes for viurs infiltration incude.
A. floppy disks or other media that users can exchange
B. E-mail attachments
C. pirated software and shareware
D. All of the above
If a virus simply reproduces and has no cause for an attack phase, but it will still without your permission.
A. hide its own code
B. steal storage and pilfer CPU cycles
C. delete files
D. play music
微信支付 
支付宝支付