In Android, which component is used to receive and respond to system-wide broadcast announcements? MCQ with Answer and Explanation

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In Android, which component is used to receive and respond to system-wide broadcast announcements?

A. Broadcast Receiver

B. Service

C. Activity

D. Content Provider

Answer: Option A

Solution (By JKSSB Mock Tests)

Broadcast Receivers listen for system events (like boot completed, battery low) and allow apps to respond.

This question belongs to: Computer Operating Systems

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Question #1

In operating systems, what is the 'Working Set' of a process?

A. The structural priority tier assigned by the CPU scheduler.

B. The entire collection of data files ever opened by the process.

C. The set of memory pages frequently referenced by the process during its current execution phase.

D. The list of peripheral device drivers used by the application.

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Correct Answer: Option C

Explanation:
The working set represents the specific collection of virtual memory pages that a process actively utilizes during a given time slice.

This question belongs to: Computer Operating Systems

Question #2

What type of multitasking architecture requires application designers to build yield points inside code routines to prevent an app from locking up the system?

A. Preemptive Multitasking

B. Cooperative Multitasking

C. Symmetric Multiprocessing

D. Real-Time Scheduling

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Correct Answer: Option B

Explanation:
Cooperative multitasking depends completely on applications behaving correctly and yielding execution back to the OS scheduler loop.

This question belongs to: Computer Operating Systems

Question #3

Which of the following is a type of multiprocessing where each processor runs its own copy of the OS?

A. Asymmetric multiprocessing

B. Symmetric clustering

C. Symmetric multiprocessing

D. Distributed processing

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Correct Answer: Option A

Explanation:
In asymmetric multiprocessing, a master processor runs the OS and allocates tasks to slave processors; each may have its own OS.

This question belongs to: Computer Operating Systems

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