What is the main role of the Android 'Window Manager'? MCQ with Answer and Explanation

Question
What is the main role of the Android 'Window Manager'?
A. To manage app permissions
B. To manage the layout and display of windows and views
C. To handle input events
D. To control power management
Answer: Option B
Solution (By JKSSB Mock Tests)
Window Manager organizes the screen's surface and coordinates how windows are rendered and layered.
This question belongs to: Computer Operating Systems
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Practice More Operating Systems Questions

Question #1
Which file system format was introduced with Windows NT to support file permissions, encryption, and reliability features?
A. FAT16
B. NTFS
C. FAT32
D. HPFS
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Correct Answer: Option B

Explanation:
NTFS (New Technology File System) added security features, access control lists, encryption, and file journaling which were missing in FAT file systems.
This question belongs to: Computer Operating Systems
Question #2
What is the purpose of the Android 'AccessibilityManager'?
A. To provide accessibility features and services for users with disabilities
B. To control gesture navigation
C. To manage accessibility settings
D. To handle screen readers
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Correct Answer: Option A

Explanation:
AccessibilityManager enables apps to assist users with disabilities, e.g., text-to-speech, magnification.
This question belongs to: Computer Operating Systems
Question #3
What type of program is 'systemd' in modern Linux operating systems?
A. A high-performance text editor library.
B. The primary sound card device driver.
C. An initialization system and service manager that bootstraps user space and manages system daemons.
D. An open-source web browser package.
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Correct Answer: Option C

Explanation:
systemd is the modern standard init framework and system manager used in Linux to bootstrap user components and control services.
This question belongs to: Computer Operating Systems
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