Computer Hardware problems
- 1. Which hardware component controls serial port communications?
Options- A. ROM BIOS
- B. CPU
- C. DMA823
- D. UART 16550
- E. None of the above Discuss
Correct Answer: UART 16550
- 2. Which of the following is a type of preventative maintenance used on a hard drive?
Options- A. Disk check diagnostics
- B. Head alignment diagnostics
- C. Initializing
- D. Uninstalling programs
- E. None of the above Discuss
Correct Answer: Disk check diagnostics
- 3. A customer has just installed a new cd-rw. the system was working fine before the installation, but now the cdrom does not work, what should you suggest that the customer do?
Options- A. flash or upgrade the BIOS
- B. check the CONFIG.SYS
- C. add cdrw in the device manager
- D. check the jumper setting on the cd-rw
- E. None of the above Discuss
Correct Answer: check the jumper setting on the cd-rw
- 4. What is the best ground for a conductive work bench?
Options- A. AC outlet
- B. Ground to bench
- C. To the motherboard
- D. To the PC's Chassis
- E. None of the above Discuss
Correct Answer: AC outlet
- 5. Whenever you have a hardware resource conflict, it will more likely be an IRQ conflict rather than an i/o conflict because:
Options- A. there are a lot more I/O addresses than IRQs.
- B. the BIOS sometimes has more of a problem controlling IRQs
- C. I/O addresses cannot conflict
- D. software tends to correct I/O conflicts
- E. software tends to mess up IRQs Discuss
Correct Answer: there are a lot more I/O addresses than IRQs.
- 6. In ROM BIOS, the acronym BIOS stands for:
Options- A. Basic Intuitive Output Set
- B. Basic Input Organizational System
- C. Basic Input Output System
- D. Basic Industry Operating System
- E. None of the above Discuss
Correct Answer: Basic Input Output System
- 7. Modems use _____ transmission.
Options- A. Synchronous
- B. Asynchronous
- C. Timed interval
- D. PPP
- E. None of the above Discuss
Correct Answer: Asynchronous
- 8. How can you totally protect a PC from damage during an electrical storm?
Options- A. Disconnect the AC power cable
- B. Disconnect all external cables and power cords
- C. Use a surge protector
- D. Turn off the AC power
- E. None of the above Discuss
Correct Answer: Disconnect the AC power cable
- 9. What command is used to reset a MODEM when using the
Options- A. ATR
- B. ATZ
- C. DTR
- D. DCE
- E. None of the above Discuss
Correct Answer: ATZ
- 10. To prevent the computer from overheating you should?
Options- A. Remove the slot cover from the back
- B. Keep the computer cover closed
- C. Remove the CPU fan
- D. All of the above
- E. None of the above Discuss
Correct Answer: Keep the computer cover closed
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