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21. Resistance is measured in units of:

A. ohms
B. farads
C. helids
D. amperes
E. volts

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22. Which provides the fastest data access time?

A. RAM
B. ROM
C. CD-ROM
D. Hard disk
E. Floppy disk

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23. How is ink transferred to paper in common ink jet printers?

A. Boiling ink
B. Crystal
C. Motorized pump
D. Screens deflect ink on the paper into the proper positions
E. Ink is sprayed on to the paper and managed by a nozzle

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24. Which component must be vacuumed or replaced during preventative maintenance on a laser printer?

A. Scanning mirror
B. Toner cartridge
C. Ozone filter
D. All of the above
E. None of the above

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25. 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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