In Android, the 'adb' (Android Debug Bridge) is used for: MCQ with Answer and Explanation

Question
In Android, the 'adb' (Android Debug Bridge) is used for:
A. Debugging and communicating with an Android device via command line
B. Installing apps only
C. Managing emulators
D. Transferring files
Answer: Option A
Solution (By JKSSB Mock Tests)
ADB is a versatile tool for developers to execute commands, install apps, view logs, and debug on connected devices.
This question belongs to: Computer Operating Systems
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Practice More Operating Systems Questions

Question #1
In a multiprocessing system, what is the term for the ability to run multiple threads simultaneously on different cores?
A. Parallelism
B. Hyperthreading
C. Concurrency
D. Multithreading
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Correct Answer: Option A

Explanation:
Parallelism refers to executing multiple threads at the exact same time on multiple cores; concurrency is about managing multiple tasks with possible overlap.
This question belongs to: Computer Operating Systems
Question #2
Which of the following is a type of process scheduling algorithm that uses multiple queues with different priorities?
A. Round Robin
B. Priority Scheduling
C. Multilevel Queue Scheduling
D. First-Come, First-Served
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Correct Answer: Option C

Explanation:
Multilevel queue partitions processes into separate queues based on priority, with scheduling policies for each queue.
This question belongs to: Computer Operating Systems
Question #3
Which Windows 11 feature allows users to organize open windows into distinct spatial arrangements on the screen to optimize multitasking?
A. Dynamic Refresh Rate
B. Windows Hello
C. Virtual Desktops
D. Snap Layouts
Discuss
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Correct Answer: Option D

Explanation:
Snap Layouts allow users to organize multiple application windows across different layout zones on a display screen.
This question belongs to: Computer Operating Systems
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