Operating Systems MCQs
Practice Operating System MCQs covering Windows, Linux, Android, booting, multitasking and multiprocessing concepts with answers and explanations.
Question #51
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Which scheduling algorithm uses a fixed time slice called a 'quantum' to cycle through all ready processes in a circular fashion?
Correct Answer: Option A
Explanation:
Round Robin (RR) is a preemptive scheduling algorithm that assigns each process a small fixed time quantum sequentially in a cyclic loop.
Round Robin (RR) is a preemptive scheduling algorithm that assigns each process a small fixed time quantum sequentially in a cyclic loop.
This question belongs to:
Computer
Operating Systems
Question #52
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What is the name of the central management module in Windows that controls hardware configuration and manages device updates or rollbacks?
Correct Answer: Option A
Explanation:
Device Manager is a Control Panel applet in Windows that allows users to view and control the hardware attached to the computer.
Device Manager is a Control Panel applet in Windows that allows users to view and control the hardware attached to the computer.
This question belongs to:
Computer
Operating Systems
Question #53
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Which Linux command is used to delete a file from the file system permanently?
Correct Answer: Option A
Explanation:
The 'rm' command stands for remove and is used to delete files or directories in Unix-like terminal shells.
The 'rm' command stands for remove and is used to delete files or directories in Unix-like terminal shells.
This question belongs to:
Computer
Operating Systems
Question #54
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What is the function of the 'Zygote' process in the Android operating system architecture?
Correct Answer: Option C
Explanation:
Zygote is a special master process in Android that starts during system boot. It pre-loads framework resources and forks itself to instantiate new applications rapidly.
Zygote is a special master process in Android that starts during system boot. It pre-loads framework resources and forks itself to instantiate new applications rapidly.
This question belongs to:
Computer
Operating Systems
Question #55
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Which of the following terms describes a tiny, lightweight execution unit within a larger process that shares the parent process's memory space?
Correct Answer: Option D
Explanation:
A thread is a basic unit of CPU utilization. Multiple threads within the same process share code, data, and OS resources like open files.
A thread is a basic unit of CPU utilization. Multiple threads within the same process share code, data, and OS resources like open files.
This question belongs to:
Computer
Operating Systems
Question #56
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What type of operating system kernel includes all device drivers, file system handlers, and process management routines inside a single massive binary space running in privileged mode?
Correct Answer: Option C
Explanation:
A monolithic kernel compiles all essential OS services directly into a single, comprehensive space, providing high performance at the expense of modular isolation.
A monolithic kernel compiles all essential OS services directly into a single, comprehensive space, providing high performance at the expense of modular isolation.
This question belongs to:
Computer
Operating Systems
Question #57
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Which Windows keyboard shortcut opens the Advanced Windows Power User Task Menu (providing direct access to Device Manager, Disk Management, and Terminal)?
Correct Answer: Option B
Explanation:
Pressing Windows Key + X brings up the Quick Link / Power User menu, giving swift administrative shortcuts to advanced Windows tools.
Pressing Windows Key + X brings up the Quick Link / Power User menu, giving swift administrative shortcuts to advanced Windows tools.
This question belongs to:
Computer
Operating Systems
Question #58
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In an operating system, what is the primary role of the 'Short-Term Scheduler'?
Correct Answer: Option A
Explanation:
The short-term scheduler (or CPU scheduler) picks which process from the ready queue gets executed by the CPU next.
The short-term scheduler (or CPU scheduler) picks which process from the ready queue gets executed by the CPU next.
This question belongs to:
Computer
Operating Systems
Question #59
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Which component of the Linux operating system translates user terminal text commands directly into specific actions understood by the kernel?
Correct Answer: Option D
Explanation:
The shell is a specialized command-line interpreter program that accepts text inputs from the user and executes system commands via the kernel.
The shell is a specialized command-line interpreter program that accepts text inputs from the user and executes system commands via the kernel.
This question belongs to:
Computer
Operating Systems
Question #60
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What is the purpose of the 'chkdsk' utility command in a Microsoft Windows environment?
Correct Answer: Option A
Explanation:
The CHKDSK (Check Disk) utility inspects file systems and hard drives for physical or logical integrity issues and repairs them.
The CHKDSK (Check Disk) utility inspects file systems and hard drives for physical or logical integrity issues and repairs them.
This question belongs to:
Computer
Operating Systems
