220-1201 · topic practice

Core PC Hardware Troubleshooting practice questions

Practise diagnosing and fixing core PC hardware problems, including POST failures, power issues, and storage errors.

Courseiva uses original exam-style practice questions designed for learning and revision. The goal is to understand the concepts, recognise exam patterns, and improve through explanations — not memorise copied exam dumps.

Reviewed byJohnson Ajibi· MSc IT Security
20 questionsDomain: Core PC Hardware Troubleshooting

What the exam tests

What to know about Core PC Hardware Troubleshooting

Tests ability to diagnose and resolve common PC hardware issues like no power, boot failures, and beep codes.

Identify and resolve POST and boot sequence failures

Troubleshoot power supply and motherboard issues

Diagnose and fix storage device and cable problems

Interpret beep codes and LED indicators for hardware faults

Why learners struggle

Why Core PC Hardware Troubleshooting questions are commonly missed

Learners often confuse symptom patterns across different hardware failures. They also struggle to distinguish between power supply, motherboard, and peripheral faults.

  • ·POST beep codes vs no beep at all — meaning
  • ·Power supply failure vs motherboard failure — symptoms
  • ·Loose data cable vs failed hard drive — diagnosis
  • ·Overheating vs insufficient power — crash causes
  • ·BIOS settings vs hardware failure — boot issues
  • ·RAM seating vs RAM compatibility — error messages

Watch out for

Common Core PC Hardware Troubleshooting exam traps

  • Confusing beep code patterns for different BIOS manufacturers
  • Assuming a blank screen always means a dead motherboard
  • Overlooking loose cables or incorrect jumper settings
  • Replacing a component without checking for simple power issues

Practice set

Core PC Hardware Troubleshooting questions

20 questions · select your answer, then reveal the explanation

A technician is troubleshooting a PC that boots to a black screen with a blinking cursor after the BIOS screen. The system has a single SSD with the OS installed. The BIOS detects the SSD. What is the most likely cause?

A user reports that their PC randomly restarts during boot-up, sometimes before the Windows logo appears. They have already tried reseating the RAM. Which component should be tested next?

A technician is deploying a new SSD in a desktop PC. After installing the drive and connecting the SATA data and power cables, the system does not recognize the drive in the BIOS. All other drives are detected. What should the technician check first?

A user reports that their PC emits a continuous series of short beeps and will not display anything on the screen. The system was working fine after a recent RAM upgrade. What is the most likely cause of this issue?

A client brings in a desktop that will not power on. The technician verifies the power cord is connected and the PSU fan does not spin when the power button is pressed. What is the most appropriate next step?

A technician is configuring a new workstation for video editing. After installing a high-end GPU and additional RAM, the system powers on but the screen is blank. The motherboard has diagnostic LEDs; the VGA LED is lit. What is the most likely issue?

A user complains that their computer randomly shuts down after about 30 minutes of gaming. The case feels warm to the touch, and all fans are spinning. Which component is most likely causing the shutdowns?

A customer reports that their desktop PC emits a series of three long beeps and then nothing appears on the screen. The system was working fine yesterday. What is the most likely cause of this issue?

A technician is troubleshooting a desktop that powers on but displays nothing on the monitor. The monitor is on and connected via HDMI. The technician hears one short beep from the motherboard speaker. What should the technician do next?

A customer says their laptop battery no longer charges. The laptop works when plugged into AC power, but the battery icon shows '0% available (plugged in)'. What is the most likely cause?

A user reports that their PC boots to a black screen with a blinking cursor after installing a new SATA SSD. The old hard drive is still connected. What is the most likely issue?

A user's PC is running very slowly, and the hard drive activity LED is constantly lit even when idle. Task Manager shows 100% disk usage. Which component is most likely failing?

After replacing a motherboard, a technician finds that the PC will not power on at all. The power supply fan does not spin, and no LEDs light up. The PSU was working before the replacement. What is the most likely cause?

A user reports that their PC randomly freezes for a few seconds and then resumes. This happens most often when opening large files or running multiple applications. Event Viewer shows no critical errors. Which component is most likely causing the issue?

A technician upgrades a PC from a traditional HDD to an NVMe SSD. After installation, the BIOS detects the SSD, but Windows does not appear in the boot menu. What should the technician do to resolve this?

During a deployment, you install a new graphics card into a desktop PC. After powering on, the system boots but the display is blank. The monitor is known to work, and the card's fans spin. What should you check next?

A technician is troubleshooting a desktop that will not boot. The power LED is on, fans spin, but there is no display and no beep codes. The CPU and RAM have been reseated, and the motherboard appears to have power. What should the technician check next?

A customer complains that their PC randomly shuts down after about 30 minutes of use, especially when playing games. The case feels warm to the touch. What should you check first?

A user reports that their PC powers on for a second then immediately shuts off. This repeats in a loop. What is the most likely hardware issue?

A user reports that their desktop PC emits a series of short beeps and fails to boot. The monitor shows no display, and the keyboard and mouse LEDs are off. What is the most likely cause?

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Frequently asked questions

What does the 220-1201 exam test about Core PC Hardware Troubleshooting?
Tests ability to diagnose and resolve common PC hardware issues like no power, boot failures, and beep codes.
How should I use these practice questions?
Select your answer before revealing the explanation. Then read why each option is right or wrong — this active recall approach builds retention far faster than re-reading notes.
Can I practise just Core PC Hardware Troubleshooting questions in a focused session?
Yes — the session launcher on this page draws every question from the Core PC Hardware Troubleshooting domain. Use a 10-question session first to gauge your baseline, then move to 20 or 30 once the weak spots are clear.
Where can I practise other 220-1201 topics?
Use the topic links above to move to related areas, or go back to the 220-1201 question bank to see all topics.
Are these real exam questions or dumps?
These are original practice questions written to test the same concepts the 220-1201 exam covers. They are not copied from any real exam or dump site.