Chapter 14 ■ Hardware and Network Troubleshooting

Question 1

1. If the video on your laptop is not working, what should you do to troubleshoot it?
   (Choose two.)
   A. Toggle the video function key.
   B. Try using an external monitor.
   C. Remove the display unit and reattach it.
   D. Power the system off and back on.

Answer 1

A. Toggle the video function key.
B. Try using an external monitor.

Question 2

2. You boot up a Windows 10 desktop computer. The Windows splash screen flashes briefly,
   and then there is no display. What is the best next step to take to troubleshoot the issue?
   A. Replace the failed monitor.
   B. Replace the failed video card.
   C. Reboot and enable low-resolution video mode.
   D. Try a second monitor.

Answer 2

C. Reboot and enable low-resolution video mode.

Question 3

3. A user tells you that his Android phone case is bulging, and the device has been hot to the
   touch lately. You suspect a swollen battery. Which of the following is a good next step?
   A. Replace the device.
   B. Leave the device on to drain the battery, and then recharge the device.
   C. Turn the device off, let it cool to room temperature, and then recharge the device.
   D. Use the battery calibration utility.
   E. Freeze the system.

Answer 3

A. Replace the device.

Question 4

4. A laptop user with an 802.11ac wireless network card just switched desk locations. In the
   new location, she says that her wireless drops connectivity intermittently and seems to have
   slow transfer speeds. Which of the following is most likely to resolve these issues?
   A. Replace the network card.
   B. Run ipconfig to ensure that she is receiving the right IP address from the DHCP
   server.
   C. Install a new WAP closer to her new desk.
   D. Use a network monitor to ensure that there are no IP address conflicts.

Answer 4

C. Install a new WAP closer to her new desk.

Question 5

5. While troubleshooting a client computer, you decide to obtain a new IP address from the
   DHCP server. After releasing the existing address, which command do you use to get new
   IP information from the DHCP server?
   A. ipconfig /refresh
   B. ipconfig /renew
   C. ifconfig /release
   D. ifconfig /start

Answer 5

B. ipconfig /renew

Question 6

6. Users are complaining that their print jobs are not printing. You open the print queue and
   see 50 jobs lined up. The printer is connected properly and online. What should you do?
   A. Open Printer Troubleshooting and have it diagnose the problem.
   B. Stop and restart the print spooler.
   C. Delete and reinstall the printer.
   D. Delete and reinstall Windows.

Answer 6

B. Stop and restart the print spooler.

Question 7

7. The display on a laptop computer is continuously flickering. Which of the following are
   most likely to cause this problem? (Choose two.)
   A. A failing display
   B. Interference from a nearby fan
   C. A failing backlight
   D. A failing inverter
   E. Incorrect video driver

Answer 7

C. A failing backlight
D. A failing inverter

Question 8

8. You are having problems with the video card in one of your computers. Where could you
   check for troubleshooting information?
   A. Another computer with the same video card
   B. The video card manufacturer’s website
   C. The manual that came with the card
   D. The server log

Answer 8

B. The video card manufacturer’s website

Question 9

9. Your laser printer keeps printing vertical black lines on its output pages. What is the most
   likely cause of the problem?
   A. There is a groove or scratch in the EP drum.
   B. The EP drum-cleaning blade is broken.
   C. The printer is low on toner.
   D. The transfer corona wire is not working properly.

Answer 9

A. There is a groove or scratch in the EP drum.

Question 10

10. The display on your laptop appears warped and fuzzy. You plug in an external monitor,
    and the image on it is fine. What is the most likely cause of the problem?
    A. The video card
    B. The LCD display
    C. The motherboard
    D. The video driver

Answer 10

B. The LCD display

Question 11

11. You have an inkjet printer. Recently, papers are being printed with excessive amounts of
    ink, and the ink is smearing. What is the most likely cause of the problem?
    A. A faulty ink cartridge
    B. A corrupt print driver
    C. A faulty fuser
    D. Too much humidity in the air

Answer 11

A. A faulty ink cartridge

Question 12

12. You believe that a network card is beginning to fail. Which of the following tools
    should you use to see if the network card is capable of sending and receiving data from an
    RJ-45 port?
    A. Tone generator and probe
    B. Loopback plug
    C. Multimeter
    D. Cable tester

Answer 12

B. Loopback plug

Question 13

13. When you print documents on your laser printer, you see residue from previous images on
    the output. Which two things are the most likely causes of this problem? (Choose two.)
    A. A faulty transfer corona wire
    B. An overheating printer
    C. A bad erasure lamp
    D. A broken cleaning blade

Answer 13

C. A bad erasure lamp
D. A broken cleaning blade

Question 14

14. Troubleshooting a network connectivity issue takes you into the wiring closet, where you
    realize that none of the cables are properly labeled. Several are disconnected. Which tool
    should you use to determine where the cables run to?
    A. Loopback plug
    B. Punch-down tool
    C. Cable tester
    D. Tone generator and probe

Answer 14

D. Tone generator and probe

Question 15

15. You turn on a laptop computer and the hard drive is not recognized. Where should you go
    to troubleshoot the issue?
    A. S.M.A.R.T. diagnostics
    B. BIOS/UEFI
    C. Windows Device Manager
    D. Boot sector manager

Answer 15

B. BIOS/UEFI

Question 16

16. You turn a computer on and it doesn’t boot up properly. You hear a rhythmic ticking sound
    coming from inside the case. What is most likely the problem?
    A. The motherboard
    B. The power supply fan
    C. The HDD
    D. The video card

Answer 16

C. The HDD

Question 17

17. You support an old impact printer at work. When the printer prints, there is always a blank horizontal
    line in the middle of each line of output. What is the most likely cause of the problem?
    A. The print ribbon is old and needs to be replaced.
    B. The print ribbon is not advancing properly.
    C. The print head needs to be replaced.
    D. The wrong print driver is installed.

Answer 17

C. The print head needs to be replaced.

Question 18

18. A network cable for a crucial server has failed. There are no pre-made Ethernet cables
    available, but there is bulk cable and connectors. Which tool do you need to use to make a
    new cable?
    A. Crimper
    B. Punch-down tool
    C. Cable tester
    D. Loopback plug

Answer 18

A. Crimper

Question 19

19. A user brings in an iPhone and the touch screen is not responding. What should you do to
    try first to get the device functioning again?
    A. Hold the power button and the sleep/wake button for 10 seconds to reset the device.
    B. Restore the device to factory settings.
    C. Replace the battery in the device.
    D. Hold the power button for 10 seconds to force the device to power off.

Answer 19

D. Hold the power button for 10 seconds to force the device to power off.

Question 20

20. You are troubleshooting a server and discover that one of the hard drives in the RAID 0
    array has failed. Which statement is true?
    A. You need to replace the failed drive, but the data is okay because the drive is configured
    as a mirror.
    B. You need to replace the failed drive, but the data is okay because the drive is configured
    as a disk stripe with parity.
    C. You need to replace the failed drive, and the data on the array is lost.
    D. You do not need to replace the failed drive; the system will function normally.

Answer 20

C. You need to replace the failed drive, and the data on the array is lost.