Computer Hardware Troubleshooting MCQs with Answers and Explanations
Practice Computer Hardware Troubleshooting MCQs. from IT & Network Operations subject. with solved answers and explanations. updated syllabus-based questions.
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Question 1: What should be done before opening a computer case for hardware repair to protect against ESD?
Electrostatic Discharge (ESD) can destroy sensitive electronic components; grounding yourself prevents static buildup.
Question 2: What is the purpose of the "POST" process when a computer is first turned on?
POST (Power-On Self-Test) is a diagnostic testing sequence run by the BIOS/UEFI to ensure hardware like RAM and CPU are working before loading the OS.
Question 3: Which hardware diagnostic tool is used to test the RAM (Random Access Memory) for errors?
MemTest86 is a popular third-party tool (and Windows has a built-in Memory Diagnostic tool) used to identify physical faults in RAM modules.
Question 4: Which of the following is a symptom of a failing Hard Disk Drive (HDD)?
Mechanical clicking sounds often indicate that the read/write head of an HDD is failing or hitting the platters, signaling imminent data loss.
Question 5: A computer is unusually slow and takes too long to open applications. Which is the most likely immediate cause?
Excessive startup programs and background processes often cause slow system performance.
Question 6: Which of the following is the safest first action before replacing or upgrading internal hardware?
Power should be disconnected before handling internal hardware to prevent damage or injury.
Question 7: A desktop computer in the enforcement station is not turning on at all. What should be checked first?
If a desktop is not powering on, the first step is to verify the power source, cable, and electrical connection.
Question 8: Which of the following are common symptoms of RAM failure in a computer?
Faulty RAM can cause crashes, restarts, and blue screen errors due to unstable memory operations.
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