Discussion
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- Question
The DC voltage on most circuit boards is:
Options- A. -12 volts
- B. 0 volts
- C. +5 volts
- D. +12 volts
- E. None of the above
- Correct Answer
- +5 volts
- 1. A hard disk is divided into tracks which are further subdivided into:
Options- A. clusters
- B. sectors
- C. vectors
- D. heads
- E. None of the above Discuss
- 2. When installing an internal modem, all of the following IRQ's can be used except?
Options- A. 5
- B. 10
- C. 14
- D. All of the above
- E. None of the above Discuss
- 3. A 25-pin female connector on the back of your computer will typically be:
Options- A. Serial port 1
- B. A parallel port
- C. Docking
- D. COM2 port
- E. None of the above Discuss
- 4. Modems use transmission.
Options- A. synchronous
- B. asynchronous
- C. timed interval
- D. ata
- E. bank Discuss
- 5. After installing a sound card, the system locks up when a parallel port tape backup unit is also used. What is most likely the problem?
Options- A. IRQ
- B. DMA
- C. defective LPT port
- D. defective tape driver
- E. defective sound card. Discuss
- 6. What would you ask to determine if the display is working?
Options- 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. All of the above
- E. None of the above Discuss
- 7. 14.4 modem should transmit _____ bits per second
Options- A. 14,400-15,000
- B. 140-150
- C. 1400-1500
- D. 140,000-150,000
- E. None of the above Discuss
- 8. Which step should you perform first before discharging a CRT?
Options- A. Remove the CRT from its housing
- B. Disconnect the CRT from the computer
- C. Remove the video assembly
- D. Turn power off before removing power source
- E. None of the above Discuss
- 9. The floppy drive uses which DMA (direct memory access) channel?
Options- A. 5
- B. 4
- C. 1
- D. 9
- E. 2 Discuss
- 10. When not in use, it is very important to keep 5 1/4 diskettes in _____.
Options- A. Their protective sleeves
- B. In a plastic bag
- C. On a shelf in an upright position
- D. In the floppy drive
- E. None of the above Discuss
Computer Hardware problems
Search Results
Correct Answer: sectors
Correct Answer: 14
Correct Answer: A parallel port
Correct Answer: asynchronous
Correct Answer: IRQ
Correct Answer: All of the above
Correct Answer: 14,400-15,000
Correct Answer: Turn power off before removing power source
Correct Answer: 2
Correct Answer: Their protective sleeves
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