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  • Question
  • RS-232 is a standard that applies to?


  • Options
  • A. Parallel port
  • B. Serial port
  • C. Game port
  • D. All of the above
  • E. None of the above

  • Correct Answer
  • Serial port 


  • Computer Hardware problems


    Search Results


    • 1. You suspect a virus has entered your computer. What will not be affected by the virus?

    • Options
    • A. CMOS
    • B. Boot sector
    • C. Floppy disks
    • D. Program files
    • E. None of the above
    • Discuss
    • 2. To find out how much memory is available, you could type _____

    • Options
    • A. EMM
    • B. MEM
    • C. CHKDSK
    • D. MEMMAKER
    • E. None of the above
    • Discuss
    • 3. Match the device driver HIMEM.SYS to its operation.

    • Options
    • A. Supports (ANSI) terminal emulation
    • B. Manages the use of extended memory
    • C. Uses expanded memory on a 80386 processor
    • D. Supports code page switching
    • E. None of the above
    • Discuss
    • 4. What is the best ground for a conductive work bench?

    • Options
    • A. AC outlet
    • B. Ground to bend
    • C. To another device
    • D. Chassis ground
    • E. None of the above
    • Discuss
    • 5. After doing a low-level format, what would be the next step in configuring the hard drive in a system?

    • Options
    • A. Format DOS partition
    • B. Install operating system
    • C. Configure DMA channel and back-up interrupt
    • D. Partition hard disk
    • E. None of the above
    • Discuss
    • 6. A keyboard locks up intermittently even when replaced with a new keyboard. What is the LEAST likely cause of the problem?

    • Options
    • A. A second bad keyboard
    • B. The keyboard controller chip
    • C. The keyboard connector
    • D. The motherboard
    • E. None of the above
    • Discuss
    • 7. On PC power supplies, the wire attached to pin one is usually:

    • Options
    • A. blue or red
    • B. blue or white
    • C. red or black
    • D. red or white
    • E. white or orange
    • Discuss
    • 8. Which type of cable is most likely in use with rj-45 connectors?

    • Options
    • A. 10base2
    • B. 10base5
    • C. 10baseT
    • D. 10baseFL
    • E. None of the above
    • Discuss
    • 9. 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
    • 10. Which is NOT typically a Field Replaceable Unit?

    • Options
    • A. System ROM
    • B. Power supply
    • C. System chassis
    • D. Video controller
    • E. None of the above
    • Discuss


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