What is the purpose of the Android 'Vibrator' class? MCQ with Answer and Explanation

Question
What is the purpose of the Android 'Vibrator' class?
A. To trigger notifications with vibration
B. All of the above
C. To control vibration feedback on the device
D. To manage haptic feedback
Answer: Option B
Solution (By JKSSB Mock Tests)
Vibrator allows apps to vibrate the device for notifications, haptic feedback, or custom patterns.
This question belongs to: Computer Operating Systems
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Practice More Operating Systems Questions

Question #1
Which file system is used as the standard, default option for modern internal drives in Windows 10 and Windows 11?
A. NTFS
B. ext4
C. exFAT
D. FAT32
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Correct Answer: Option A

Explanation:
NTFS (New Technology File System) is the native and default file system for modern Windows installations, providing security, journaling, and large file size support.
This question belongs to: Computer Operating Systems
Question #2
In Windows, the 'Command Prompt' (cmd) uses which text encoding by default?
A. OEM code page (e.g., 850)
B. ANSI
C. UTF-8
D. Unicode
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Correct Answer: Option A

Explanation:
By default, Command Prompt uses the OEM code page (e.g., 850 or 437) for legacy compatibility; modern versions can use UTF-8 with /U switch.
This question belongs to: Computer Operating Systems
Question #3
Which of the following is a feature of the FAT32 file system?
A. Journaling
B. Support for file permissions
C. Wide compatibility with various operating systems
D. Encryption
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Correct Answer: Option C

Explanation:
FAT32 is compatible with nearly all OSes, but lacks security features like permissions, journaling, and encryption.
This question belongs to: Computer Operating Systems
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