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Free Practice Quiz Question List

4 Core 1: Troubleshooting and Practice Online Quiz Questions

Use this free practice quiz with 20 questions to review 4 Core 1: Troubleshooting and Practice, test your knowledge, and prepare for your next test or exam.

20 questions
01
True or false
1 point

True or false: A successful power supply tester check proves that every computer component is healthy under load.

  1. A

    True

  2. B

    False

02
Fill in the blank
1 point

To check whether an unpowered conductor has an unbroken electrical path, use a multimeter's measurement.

03
Written response
1 point

Which tool would you use to trace a cable through a wall or bundle and identify its path?

04
Choose one
1 point

A desktop powers on, but its monitor displays “No signal.” What should you check first?

  1. A

    Replace the graphics hardware immediately.

  2. B

    Check the monitor's selected input and inspect the display cable and connections.

  3. C

    Change the computer's network configuration.

  4. D

    Run a memory test before checking the display.

05
True or false
1 point

True or false: A particular POST beep pattern has the same meaning on every computer manufacturer’s systems.

  1. A

    True

  2. B

    False

06
Fill in the blank
1 point

An IPv4 address beginning with 169.254 is an address, which may indicate that the device did not receive a lease from .

07
Written response
1 point

Which operating-system utility displays the route toward a network destination?

08
Choose one
1 point

A switch port repeatedly disconnects and reconnects. Which action is the best initial troubleshooting approach?

  1. A

    Change the wireless network password.

  2. B

    Replace the router's internet connection.

  3. C

    Inspect the cable and connectors, then test the endpoint NIC and switch port.

  4. D

    Reinstall the workstation's operating system.

09
Choose one
1 point

A workstation receives replies when it pings a server, but users cannot access one application hosted there. What can you conclude from the ping result?

  1. A

    Every application on the host is working.

  2. B

    The host is reachable, but a specific application or service may still be unavailable.

  3. C

    The host's DNS configuration is necessarily correct.

  4. D

    The network has no latency or packet loss.

10
Choose all
1 point

Wi-Fi drops in one conference room, while nearby rooms work normally. Which initial actions could help isolate the cause? Select all that apply.

  1. A

    Compare signal and connectivity in the affected room with a working room.

  2. B

    Change unrelated IP settings on every device in the building.

  3. C

    Check for access-point coverage issues and physical obstructions.

  4. D

    Use a Wi-Fi analyzer to examine nearby networks and channel conditions.

11
Choose one
1 point

A workstation's hard drive is clicking and read times have become very slow. What should take priority?

  1. A

    Run repeated write-intensive tests to confirm the problem.

  2. B

    Protect important data and minimize unnecessary writes.

  3. C

    Change the display's refresh rate.

  4. D

    Update the wireless access point's channel.

12
Choose all
1 point

Users report slow transfers and high latency. Which diagnostic steps can help distinguish a wireless or local-link issue from a broader path problem? Select all that apply.

  1. A

    Compare performance over wired and wireless connections.

  2. B

    Test local and internet destinations separately.

  3. C

    Replace all network equipment before gathering more evidence.

  4. D

    Check for congestion, weak signal, or a failing link.

13
Open ended
1 point

A workstation began showing crash screens soon after a driver change. Describe a systematic troubleshooting approach you would use before replacing hardware.

14
True or false
1 point

When testing a suspected cause, changing one variable at a time makes it easier to determine whether the test supports the theory.

  1. A

    True

  2. B

    False

15
Choose one
1 point

A monitor image begins flickering immediately after the refresh rate was changed. What is the best first step?

  1. A

    Replace the motherboard.

  2. B

    Check the monitor's refresh-rate setting and select a supported rate.

  3. C

    Reinstall the operating system.

  4. D

    Replace the monitor without checking its settings.

16
Written response
1 point

Which tool checks a cable's wiring and continuity? Enter the tool name.

17
Choose one
1 point

A computer has an IPv4 address beginning with 169.254 and cannot access the network. What should you investigate first?

  1. A

    Investigate DNS name resolution only.

  2. B

    Replace the monitor cable.

  3. C

    Check the network link and DHCP availability.

  4. D

    Change the system's time zone.

18
Written response
1 point

A voice call is disrupted because the delay varies from one packet to another. What networking term describes this variation?

19
Choose one
1 point

Wi-Fi drops for users in one conference room, while nearby rooms work normally. What is a useful initial comparison?

  1. A

    Compare signal and connectivity in the affected room with a working room.

  2. B

    Reset every network device in the building.

  3. C

    Change the Wi-Fi password for all users.

  4. D

    Replace the laptop before checking the room.

20
Choose one
1 point

A workstation's hard drive clicks and its read times have become very slow. What should take priority?

  1. A

    Run repeated write-intensive benchmarks to confirm the slowdown.

  2. B

    Defragment the drive before backing up data.

  3. C

    Ignore the clicking unless the drive stops responding completely.

  4. D

    Protect important data and minimize unnecessary writes.