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  • Question
  • Waveforms are graphs that show:


  • Options
  • A. frequency on the vertical axis and amplitude on the horizontal axis
  • B. amplitude on the vertical axis and frequency on the horizontal axis
  • C. amplitude on the vertical axis and the passage of time on the horizontal axis
  • D. the passage of time on the vertical axis and amplitude on the horizontal axis
  • E. None of the above

  • Correct Answer
  • amplitude on the vertical axis and the passage of time on the horizontal axis 


  • More questions

    • 1. The XOR gates are ideal for testing parity because even-parity words produce a _____ output and odd-parity words produce a _____ output

    • Options
    • A. low, high
    • B. high, low
    • C. odd, even
    • D. even, odd
    • E. None of the above
    • Discuss
    • 2. The component of an ICAI (Intelligent Computer-Asslsted Instruction) presenting information to the student is the:

    • Options
    • A. student model
    • B. problem-solving expertise
    • C. tutoring module
    • D. All of the above
    • E. None of the above
    • Discuss
    • 3. In heavily overloaded networks, cross¬bar switching offers better performance than cell-backplane switching

    • Options
    • A. True
    • B. False
    • Discuss
    • 4. The dynamic race hazard problem occurs in

    • Options
    • A. combinational circuits only
    • B. sequential circuits only
    • C. both combinational and sequential circuits
    • D. none of the combinational and sequential circuits
    • E. None of the above
    • Discuss
    • 5. If the record management system allows you to edit values before they are recorded on disk, you can

    • Options
    • A. correct spelling changes before they are recorded
    • B. change the name of a field
    • C. change the width of a field
    • D. All of the above
    • E. None of the above
    • Discuss
    • 6. What should he used to extinguish a computer fire?

    • Options
    • A. fire hose
    • B. class a extinguisher
    • C. class c extinguisher
    • D. silver foam water
    • E. None of the above
    • Discuss
    • 7. How would you allow device drivers and TSR's to be loaded into Upper Memory Blocks?

    • Options
    • A. DOS=High
    • B. devicehigh=
    • C. loadhigh=
    • D. DOS=UMB
    • E. None of the above
    • Discuss
    • 8. You are the administrator of a Windows 2000 Server network that runs in mixed mode. You install a new Windows 2000 Server computer. You create and share a new HP LaserJet 4L printer. Your Windows 2000 Professional client computers can print to the new printer successfully. However, when users try to connect to the printer from Windows NT Workstation 4.0 client computers, they receive the dialog box shown in the exhibit. "The server on which the printer resides does not have a suitable HP LaserJet printer driver installed". You want the printer driver to be installed automatically on the Windows NT Workstation computers. What should you do?

    • Options
    • A. Copy the Windows NT 4.0 Printer Drivers to the Net logon shared folders on all Windows NT Server 4.0 computers still configured as BDCs
    • B. Copy the Windows NT 4.0 printer drivers to the Net logon shared folder on the PDC emulator
    • C. Change the sharing options on the printer to install additional drivers for Windows NT 4.0 or Windows 2000
    • D. Copy the Windows NT 4.0 printer drivers to the Winnt\System32\ pri liter s\dri vers folder on the Windows 2000 print server
    • E. None of above
    • Discuss
    • 9. An expert system differs from a database program in that only an expert system:

    • Options
    • A. contains declarative knowledge
    • B. contains procedural knowledge
    • C. features the retrieval of stored information
    • D. expects users to draw their own conclusions
    • E. None of the above
    • Discuss
    • 10. Which type of statement does not occur in computer programs?

    • Options
    • A. sequence
    • B. loop
    • C. denial
    • D. selection
    • Discuss


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