I/O and Multimedia Ports and Devices

1. Which of the following can be used with the SCSI- (Small Computer Systems Interface) based technology? (Choose two.)
   1. High-performance and high-capacity hard drives
   2. Image scanners
   3. Hubs
   4. Switches
2. When daisy-chaining SCSI devices, what must each device have? (Choose two.)
   1. Each device must have a unique SCSI device ID.
   2. They must have a separate bus.
   3. Each end of the daisy-chain must be terminated.
   4. They require their own adapter.
3. A serial port can hook up devices such as external modems and label printers. What is this port usually called?
   1. SCSI port
   2. COM port
   3. PS/2 ports
   4. Parallel port
4. Which of the following devices can be used for a printer port, scanner, or removable media?
   1. PS/2 port
   2. Parallel port
   3. NIC card
   4. I/O port
5. Which device is known as IEEE 1394?
   1. USB
   2. Parallel port
   3. FireWire
   4. PS/2
6. Some desktop systems and many of the older laptop and portable systems include a port to connect a mouse or keyboard. What is this port called?
   1. USB
   2. FireWire
   3. BIOS
   4. PS/2
7. What is the standard size of the audio mini-jack used by sound cards?
   1. 1 1/2 inch
   2. 1/8 inch
   3. 2 1/2 inch
   4. 1 inch
8. There are two standards for USB ports. What are they? (Choose two.)
   1. USB 1.1
   2. USB 3.2
   3. USB 1.0
   4. USB 2.0
9. If you run out of USB ports and need more, which of the following devices are available? (Choose all that apply.)
   1. Motherboard connectors
   2. USB hubs
   3. Add-on cards
   4. Extra PCI slots
10. Which device still remains the primary method used to enter data and send commands to the computer?
    1. Mouse
    2. Gamepad
    3. Stylus
    4. Keyboard
11. Which of the following is used to transfer data into a computer by pressing on screen icons?
    1. Touch screen monitors
    2. CRT monitors
    3. LCD monitors
    4. Serial ports
12. Which of the following are considered multimedia devices? (Choose all that apply.)
    1. Webcam
    2. Sound card
    3. Microphone
    4. All of these options are correct
13. You have just attached speakers to a sound card that you know to be working. After you restart the computer you notice that no sound is coming out. Which of the following could be the problem? (Choose two.)
    1. The sound card was not seated properly.
    2. The sound card is defective.
    3. The speakers are turned off.
    4. The speakers are plugged into the wrong jack.
14. You are in the process of installing a new keyboard to a new PC. Which of the following is the most common type of connector to use?
    1. Blu-ray connector
    2. PS/2 connector
    3. USB connector
    4. PS/3 connector
15. Which of the following can cause problems with keyboards? (Choose all that apply.)
    1. A damaged keyboard connector on the computer
    2. A damaged keyboard cable
    3. Dirt, dust, or gunk in the keyboard
    4. None of these apply
16. Which of the following would you check first when troubleshooting multiple USB devices that are not recognized by Windows?
    1. Disable the device in Windows
    2. Reinstall the driver
    3. Enable USB ports in the BIOS
    4. Flash the BIOS
17. You have been informed by a user that his mouse is not working correctly. After asking some questions you have discovered that he is using a ball and roller design. Which of the following steps can you take to correct the problem? (Choose all that apply.)
    1. Open the access cover to release the ball
    2. Shake loose any dust
    3. Turn the rollers until you see the grime or dirt
    4. Wipe the rollers clean

Answers

1. A, B. High-performance hard drives, image scanners, removable-media drives—such as Zip, Jaz, and Castlewood Orb—and other devices use SCSI interfaces.
2. A, C. When using the daisy-chain method each device must have a unique ID number and needs to be terminated to prevent device slowdowns.
3. B. A PC’s serial ports are usually called COM ports. Serial ports can also be used to connect docking stations and digital cameras.
4. B. A parallel port can be used to hook up all the items listed in the question. Most motherboards still come with this port even though USB is much faster and more popular.
5. C. FireWire is Apple Inc.’s brand name for the IEEE 1394 standard. IEEE 1394 is a family of high-speed, bidirectional, serial transmission ports that can connect PCs to each other, digital devices to PCs, or digital devices to each other.
6. D. In some ATX/BTX port clusters, the bottom PS/2 port is used for keyboards, and the top PS/2 port is used for mice and pointing devices. On systems and devices that use the standard PC99 color coding for ports, PS/2 keyboard ports (and cable ends) are purple, and PS/2 mouse ports (and cable ends) are green.
7. B. The 1/8-inch audio mini-jack is used by sound cards and motherboardintegrated sound for speakers, microphone, and line-in jacks. Also, to avoid confusion, most recent systems have color-coded jacks.
8. A, D. USB 1.1 and USB 2.0 are the two standards for USB ports. USB 2.0 is the newer and faster of the two.
9. A, B, C. If you need more ports for USB devices your options are motherboard connectors, USB hubs, and add-on cards.
10. D. The keyboard remains the primary method used to send commands to the computer and enter data. There are many shortcuts that can take the place of actions that would be otherwise accomplished with the mouse, for example Ctrl+X is cut, Ctrl+C is copy, and so on. You can even use it to maneuver around the Windows Desktop if your mouse or other pointing device stops working.
11. A. Touch screen monitors enable the user to transfer data into the computer by pressing on-screen icons. Touch screen monitors are very popular in public-access and point-of-sale installations.
12. D. All listed devices are considered multimedia devices. The webcam, sound card, and microphone give you the ability to make Internet phone calls, for example.
13. C, D. The mini-jacks for the speaker and microphone are identical in shape and are not always color coded. If you plug the speaker in to the wrong jack you will hear nothing from the sound card.
14. C. The Universal Serial Bus (USB) connector is by far the most common keyboard and mouse connector in today’s computers. Unlike older DIN or Mini- Din jacks you do not have to turn off the PC’s power to connect the keyboard. To install a USB keyboard you just plug it in to an empty USB port. Most of the newer computers only have USB ports. PS/2 ports have become very rare on new computers.
15. A, B, C. These are mostly simple causes that can occur. You will also want to make sure that you never plug a PS/2 keyboard in while the power is on. It could destroy the motherboard.
16. C. When more than one USB device is not recognized by Windows, one possible reason is that the USB ports have not been enabled in the BIOS program. Disabling the device in Windows only makes Windows ignore the device regardless of what you do in the BIOS, thus making the problem worse. Reinstalling the driver could be a possible solution if only one USB device is malfunctioning or is not recognized properly by Windows. Flashing the BIOS isn’t necessary in a scenario like this and is definitely not the first thing to check.
17. A, B, C, D. All of the listed solutions are correct. You open the back cover and remove the ball. Then you shake it out to remove any dust. You can also wipe out the rollers and then put the ball back in and close the mouse.

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