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21. To prevent toner from sticking to a laser printer’s heat rollers, apply which of the following:

A. Alcohol
B. Oil
C. Ammonia
D. Beer or Jack Daniels
E. None of the above

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22. Which controller would support an external CD-ROM drive?

A. ESDI
B. ARLL
C. MFM
D. SCSI
E. None of the above

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23. What would you ask to determine if the display is working?

A. Is there a video cursor or action on the screen?
B. Did the computer beep or chime?
C. Is there high voltage static on the screen
D. Is the brightness or contrast turned up or down?
E. All of the above

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24. You should never put floppy drives, hard drives, or even VCR tapes or cassette tapes on top of speakers (or near any other source of magnetism) because of:

A. RFI
B. EMI
C. EXE
D. FYI
E. IOU

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25. How many bits in a byte?

A. 16
B. 8
C. 255
D. 10
E. 2 to the 9th power

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