Android is primarily based on which operating system kernel? MCQ with Answer and Explanation

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Android is primarily based on which operating system kernel?

A. Linux Kernel

B. Unix Kernel

C. Windows NT Kernel

D. Hybrid Kernel

Answer: Option A

Solution (By JKSSB Mock Tests)

Android is an open-source operating system designed for mobile devices, built directly on top of a modified version of the Linux kernel.

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Question #1

Which of the following is a multitasking operating system?

A. Windows 10

B. CP/M

C. FreeDOS

D. MS-DOS

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Correct Answer: Option A

Explanation:
Windows 10 supports multitasking, allowing multiple applications to run concurrently; MS-DOS was single-tasking.

This question belongs to: Computer Operating Systems

Question #2

Which Linux command is used to display the current user's group memberships?

A. groups

B. Both A and B

C. id -Gn

D. who

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Correct Answer: Option B

Explanation:
groups shows all groups for the current user; id -Gn also lists group names.

This question belongs to: Computer Operating Systems

Question #3

Which of the following conditions is NOT a necessary requirement for a deadlock to occur within an operating system environment?

A. Circular Wait

B. Preemption

C. Hold and Wait

D. Mutual Exclusion

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Correct Answer: Option B

Explanation:
According to Coffman's conditions, deadlocks require *No Preemption*. If resources can be preempted, a deadlock situation can be broken or prevented.

This question belongs to: Computer Operating Systems

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