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5 Diagnosing Mobile Device Problems Online Quiz Questions

Use this free practice quiz with 20 questions to review 5 Diagnosing Mobile Device Problems, test your knowledge, and prepare for your next test or exam.

20 questions
01
Choose one
1 point

A phone charges only when its cable is held at an angle. What is the safest useful next step?

  1. A

    Change the operating-system settings before testing any accessories.

  2. B

    Try another compatible cable and adapter; if the problem remains, suspect the port.

  3. C

    Force the cable into the port to make a more secure connection.

  4. D

    Assume the battery is damaged and replace it immediately.

02
True or false
1 point

A factory reset is a last resort, and important information should be backed up first. True or false?

  1. A

    True

  2. B

    False

03
Choose one
1 point

Several devices cannot connect to the same Wi-Fi network. What should be investigated first?

  1. A

    Investigate the router or internet service.

  2. B

    Replace the touchscreen on the phone.

  3. C

    Clear data from every app on the phone.

  4. D

    Perform a factory reset on each affected device.

04
Choose one
1 point

Touches are missed or registered inaccurately. Which set of initial checks best follows the recommended troubleshooting guidance?

  1. A

    Clean and dry the screen, temporarily remove the case or protector, and retest with charging accessories disconnected.

  2. B

    Immediately clear all app data and reinstall every app.

  3. C

    Keep the device connected to its charger while testing, and press harder on unresponsive areas.

  4. D

    Factory-reset the device before checking whether the problem occurs in one app or across the screen.

05
Choose all
1 point

A phone's battery drains quickly. Select all the factors the guidance recommends checking as possible contributors.

  1. A

    Review battery usage by app.

  2. B

    Change the screen protector.

  3. C

    Check screen brightness.

  4. D

    Check background activity.

  5. E

    Consider signal conditions.

06
Fill in the blank
1 point

If only one app is affected, first it, restart the device, and install available .

07
Written response
1 point

On Android, what mode temporarily disables downloaded apps so you can check whether one may be causing a problem?

08
Choose all
1 point

Select all the actions that may erase locally stored information when troubleshooting a failing app.

  1. A

    Clearing the app's data

  2. B

    Deleting and reinstalling the app

  3. C

    Closing and reopening the app

  4. D

    Restarting the device

09
True or false
1 point

If cellular connectivity continues to fail in multiple locations, contacting the carrier may be appropriate.

  1. A

    True

  2. B

    False

10
Fill in the blank
1 point

In the practical diagnostic sequence, first . After inspecting the basics, .

11
Choose one
1 point

A phone rings and vibrates, but its screen stays blank. Which diagnosis best fits this symptom?

  1. A

    Treat the symptom as proof that the battery is swollen.

  2. B

    Consider a display fault rather than assuming the phone has lost power.

  3. C

    Clear the data of every app on the device.

  4. D

    Assume that the Wi-Fi router is preventing the screen from turning on.

12
Written response
1 point

What device setting should you verify is off when troubleshooting a mobile connectivity problem?

13
Choose one
1 point

A mobile device will not turn on. Which initial response best follows the recommended safe troubleshooting steps?

  1. A

    Insert a metal object into the charging port to clear debris.

  2. B

    Force the connector into the port and immediately repeat the attempt.

  3. C

    Use a known-working outlet, charger, and cable; allow time to charge if the battery may be deeply discharged.

  4. D

    Delete recently installed apps before checking the power supply.

14
Open ended
1 point

A device freezes and runs slowly, and several apps are failing. Explain how very low free storage could relate to these symptoms, describe appropriate next diagnostic steps, and state what precaution is needed before a factory reset.

15
Choose one
1 point

A phone's screen stays blank, but the phone still rings when called. Which diagnosis best fits these symptoms?

  1. A

    The battery is definitely dead

  2. B

    The display may have a fault

  3. C

    The operating system must be reinstalled

  4. D

    The cellular network is preventing the screen from turning on

16
True or false
1 point

If a touchscreen behaves inaccurately while the device is charging, disconnecting the charging accessory and retesting is a reasonable troubleshooting step.

  1. A

    True

  2. B

    False

17
Written response
1 point

When touches are missed or delayed across the screen, what removable display accessory can you temporarily take off, in addition to the case, to test whether it contributes?

18
Choose one
1 point

One app repeatedly crashes, while other apps and the internet work normally. Which response follows a sensible initial troubleshooting sequence?

  1. A

    Factory-reset the device immediately

  2. B

    Delete all locally stored app data without checking for a backup

  3. C

    Close and reopen the app, restart the device, and install available app updates

  4. D

    Replace the phone because the operating system is certainly damaged

19
Choose one
1 point

Several devices fail to connect to the same Wi-Fi network, but the problem is not limited to one phone. What should you investigate next?

  1. A

    Investigate the phone's screen protector

  2. B

    Investigate the router or internet service

  3. C

    Clear data from every app on the phone

  4. D

    Replace the phone's battery

20
Written response
1 point

Which device setting should you verify is off when checking basic settings during connectivity troubleshooting?