A+ Essentials Chapter 16

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| By Darren McMahon
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Darren McMahon
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Quizzes Created: 20 | Total Attempts: 13,125
| Attempts: 545
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  • 1/10 Questions

    Which of the following mice technologies most needs to be cleaned?

    • Ball
    • Optical
    • Parallel
    • Serial
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About This Quiz

It is important to differentiate between inputs and outputs when it comes to computers. In chapter 16 we covered how to identify both input and output devices, how they work on a PC and how to support input/output ports. Test your understanding of this chapter by taking up the quiz below. All the best!

A Plus Certification Quizzes & Trivia

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  • 2. 

    What is the fastest speed that Hi-Speed USB 2.0 can go?

    • 12 Mbps

    • 120 Mbps

    • 400 Mbps

    • 480 Mbps

    Correct Answer
    A. 480 Mbps
    Explanation
    Hi-Speed USB 2.0 has a theoretical maximum of 480 Mbps.

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  • 3. 

    USB 1.1 devices can run at two speeds. What are the speeds?

    • 1 and 2 Mbps

    • 1.5 and 12 Mbps

    • 1.5 and 15 Mbps

    • 12 and 48 Mbps

    Correct Answer
    A. 1.5 and 12 Mbps
    Explanation
    USB 1.1 can run at either 1.5 or 12 Mbps.

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  • 4. 

    If you attempt to scan an item and the scanner light assembly does not move,what is most likely the problem?

    • The scanner is frozen.

    • The scanner is broken.

    • The scanner light assembly is locked.

    • The scanner light assembly is resetting.

    Correct Answer
    A. The scanner light assembly is locked.
    Explanation
    The scanner light assembly is most likely locked.

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  • 5. 

    What’s the maximum cable length for USB?

    • 1.2 meters

    • 1.2 yards

    • 5 meters

    • 5 feet

    Correct Answer
    A. 5 meters
    Explanation
    USB 1.1 devices can run at either 1.5 Mbps or 12 Mbps.

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  • 6. 

    What integrated circuit device controls USB devices connected to a USB port?

    • Host controller

    • IC-USB

    • Serial port

    • UART

    Correct Answer
    A. Host controller
    Explanation
    The host controller controls USB devices plugged into the USB bus via a
    USB port.

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  • 7. 

    What happens to bus speed and power usage when you plug multiple devicesinto a USB hub?

    • The bus speed stays constant, but power usage increases.

    • The bus speed increases because each device brings a little burst; power usage increases.

    • The bus speed decreases because all devices share the same total bandwidth; power usage increases.

    • The bus speed decreases because all devices share the same total bandwidth; power usage decreases.

    Correct Answer
    A. The bus speed decreases because all devices share the same total bandwidth; power usage increases.
    Explanation
    The bus speed decreases because all devices share the same total
    bandwidth; power usage increases.

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  • 8. 

    Which port type offers the fastest transfer speed?

    • IEEE 1394a

    • IEEE 1394b

    • Full-Speed USB

    • Hi-Speed USB

    Correct Answer
    A. IEEE 1394b
    Explanation
    FireWire 800 easily spanks the competition here.

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  • 9. 

    You take a tech call from a user who complains that she gets an error message,“Hub power exceeded,” when she plugs her new thumb drive into her USBkeyboard’s external USB port. Worse, the device won’t work. What’s mostlikely the problem?

    • Her USB port is defective.

    • She has a defective thumb drive.

    • She plugged a Hi-Speed device into a Full-Speed port.

    • She plugged one too many devices into the USB hub.

    Correct Answer
    A. She plugged one too many devices into the USB hub.
    Explanation
    Just like the error message said, the thumb drive drew too much power for
    the hub to handle.

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  • 10. 

    A serial port receives and sends serial data. What device translates that serialdata into parallel data for the computer to use?

    • Parallel translator chip

    • Serial translator chip

    • COM chip

    • UART chip

    Correct Answer
    A. UART chip
    Explanation
    The UART handles the serial to parallel and parallel to serial translation.

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Quiz Review Timeline (Updated): Mar 19, 2023 +

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  • Current Version
  • Mar 19, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Oct 23, 2008
    Quiz Created by
    Darren McMahon
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