Q81. What is the purpose of using disk cleanup tools in Windows?
a) To update the operating system
b) To remove temporary files and free up disk space
c) To defragment the hard drive
d) To install security patches
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Correct Answer: b) To remove temporary files and free up disk space
Explanation: Disk cleanup tools remove temporary files, system cache, and other unnecessary files to free up disk space and improve system performance.
Q82. What is the primary function of a computer’s BIOS?
a) To manage network settings
b) To perform hardware diagnostics
c) To provide an interface between the operating system and hardware
d) To clean system files
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Correct Answer: c) To provide an interface between the operating system and hardware
Explanation: The BIOS (Basic Input/Output System) provides the fundamental interface between the operating system and hardware components during the computer’s startup process.
Q83. What should you do if your computer’s system files become corrupted?
a) Run the System File Checker tool
b) Replace the hard drive
c) Reinstall the operating system immediately
d) Increase the RAM
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Correct Answer: a) Run the System File Checker tool
Explanation: The System File Checker (SFC) tool scans for and repairs corrupted system files, which can resolve issues without needing a full OS reinstall.
Q84. What is the benefit of using a disk defragmentation tool regularly?
a) It cleans up the Windows registry
b) It helps improve file access speeds by reorganizing fragmented files
c) It updates all software applications
d) It removes malware
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Correct Answer: b) It helps improve file access speeds by reorganizing fragmented files
Explanation: Regular disk defragmentation helps optimize file access speeds by reorganizing fragmented data on the hard drive.
Q85. What does enabling a firewall on your computer help prevent?
a) Unauthorized access and attacks from external sources
b) Accidental file deletion
c) Hardware malfunctions
d) Software update failures
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Correct Answer: a) Unauthorized access and attacks from external sources
Explanation: A firewall monitors and controls incoming and outgoing network traffic to prevent unauthorized access and protect against attacks.
Q86. Which of the following tools is used to monitor system performance and resource usage?
a) Disk Cleanup
b) Task Manager
c) CCleaner
d) MyDefrag
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Correct Answer: b) Task Manager
Explanation: Task Manager provides real-time information about system performance, including CPU, memory usage, and running processes.
Q87. How often should you perform a full antivirus scan?
a) Once every six months
b) Once a year
c) Weekly or more frequently depending on usage
d) Only when you suspect an infection
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Correct Answer: c) Weekly or more frequently depending on usage
Explanation: Regular full antivirus scans help detect and remove threats early, maintaining the system’s security.
Q88. What is the purpose of using an Uninterruptible Power Supply (UPS)?
a) To improve computer performance
b) To provide backup power during outages and protect against power surges
c) To clean the internal components
d) To upgrade system software
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Correct Answer: b) To provide backup power during outages and protect against power surges
Explanation: A UPS ensures that the computer remains powered during outages and protects it from power surges, preventing potential damage.
Q89. What should you do if you find that your computer is running out of storage space?
a) Upgrade the hard drive or add an external drive
b) Increase the RAM
c) Reinstall the operating system
d) Delete system files
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Correct Answer: a) Upgrade the hard drive or add an external drive
Explanation: Adding more storage or upgrading the hard drive helps resolve issues related to low disk space and supports better data management.
Q90. How can you clean the keyboard effectively without causing damage?
a) Use compressed air to remove dust and debris
b) Wipe it with a damp cloth
c) Soak it in water
d) Use a vacuum cleaner
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Correct Answer: a) Use compressed air to remove dust and debris
Explanation: Compressed air can remove dust and debris from between keys without damaging the keyboard.