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- Question
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
- Correct Answer
- Turn power off before removing power source
- 1. 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
- 2. 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
- 3. 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 Discuss
- 4. 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
- 5. 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
- 6. The floppy drive uses which DMA (direct memory access) channel?
Options- A. 5
- B. 4
- C. 1
- D. 9
- E. 2 Discuss
- 7. 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
- 8. What can you use to ensure power is not interrupted, resulting in corrupted data?
Options- A. UPS
- B. Proper grounding
- C. Surge protector
- D. Nuclear powered thermal protective underwear
- E. None of the above Discuss
- 9. A customer attached an external drive to his notebook computer but the computer is not recognizing it. What should be considered?
Options- A. The cables are attached firmly
- B. The external drive has been pre¬loaded with the appropriate software
- C. The external drive was attached before the computer was on
- D. The external drive is turned on
- E. All of the above Discuss
- 10. In the Binary numbering system, a (1) represents a jumper being shorted and a (0) represents a jumper being open. On a three-bit jumper block on a SCSI drive, how would an ID of logical 3 be set?
Options- A. 100
- B. 010
- C. 011
- D. 101
- E. None of the above Discuss
Computer Hardware problems
Search Results
Correct Answer: 14,400-15,000
Correct Answer: All of the above
Correct Answer: +5 volts
Correct Answer: sectors
Correct Answer: 14
Correct Answer: 2
Correct Answer: Their protective sleeves
Correct Answer: UPS
Correct Answer: All of the above
Correct Answer: 011
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