Q21. What tool is used to clean the hard drive by removing temporary files and system junk?
a) Disk Cleanup
b) CCleaner
c) MyDefrag
d) Spinrite
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Correct Answer: a) Disk Cleanup
Explanation: Disk Cleanup is a built-in Windows tool that helps remove temporary files, system junk, and free up disk space, improving system performance.
Q22. What is the first step in troubleshooting a computer that fails to boot up?
a) Check the monitor’s connection
b) Verify that the power cable is securely connected
c) Replace the hard drive
d) Reinstall the operating system
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Correct Answer: b) Verify that the power cable is securely connected
Explanation: Ensuring the power cable is securely connected is a fundamental troubleshooting step before investigating other potential issues.
Q23. What should you use to safely clean the keyboard?
a) A damp cloth
b) Compressed air
c) A vacuum cleaner
d) A wet sponge
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Correct Answer: b) Compressed air
Explanation: Compressed air is effective for removing dust and debris from between keyboard keys without causing damage.
Q24. Which of the following is a key feature of antivirus software?
a) Automatic updates
b) Disk defragmentation
c) Hardware upgrades
d) Software uninstallation
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Correct Answer: a) Automatic updates
Explanation: Automatic updates are crucial for antivirus software to stay effective against new and evolving malware threats.
Q25. What action should be taken if a computer’s hard drive is making unusual noises?
a) Immediately turn off the computer and check the hard drive
b) Continue using the computer as normal
c) Reinstall the operating system
d) Update all software
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Correct Answer: a) Immediately turn off the computer and check the hard drive
Explanation: Unusual noises from a hard drive could indicate mechanical failure, so it’s important to turn off the computer to prevent data loss.
Q26. Which software tool is designed to optimize the performance of a hard drive by reorganizing fragmented data?
a) CCleaner
b) MyDefrag
c) Spinrite
d) Disk Cleanup
Show Answer
Correct Answer: b) MyDefrag
Explanation: MyDefrag is specifically designed to optimize hard drive performance by reorganizing fragmented files and data.
Q27. What is the primary function of a software firewall?
a) To scan for viruses
b) To block unauthorized access to a computer network
c) To clean the hard drive
d) To defragment the hard drive
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Correct Answer: b) To block unauthorized access to a computer network
Explanation: A software firewall monitors and controls incoming and outgoing network traffic to prevent unauthorized access and protect the system.
Q28. What should be done if a software application crashes frequently?
a) Restart the computer
b) Update the application or check for patches
c) Reinstall the operating system
d) Clean the computer’s interior
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Correct Answer: b) Update the application or check for patches
Explanation: Frequent crashes may be resolved by updating the application or applying patches that address known bugs or compatibility issues.
Q29. What tool would you use to check for and repair hard drive errors?
a) Disk Cleanup
b) MyDefrag
c) Spinrite
d) CCleaner
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Correct Answer: c) Spinrite
Explanation: Spinrite is used for checking and repairing hard drive errors, recovering lost data, and addressing physical issues with the drive.
Q30. How can you improve a computer’s performance by removing unnecessary programs?
a) By uninstalling programs that are not in use
b) By installing more RAM
c) By upgrading the graphics card
d) By cleaning the computer’s fan
Show Answer
Correct Answer: a) By uninstalling programs that are not in use
Explanation: Uninstalling unused programs can free up system resources and disk space, which helps improve overall computer performance.