Which of the following is an advantage of using a 64-bit OS over 32-bit? MCQ with Answer and Explanation

Question
Which of the following is an advantage of using a 64-bit OS over 32-bit?
A. Faster processing of 32-bit applications
B. Lower hardware requirements
C. More memory support and larger file sizes
D. Better security features like hardware DEP
Answer: Option C
Solution (By JKSSB Mock Tests)
64-bit OS supports more RAM and can handle larger file sizes; security features are not exclusive to 64-bit.
This question belongs to: Computer Operating Systems
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Practice More Operating Systems Questions

Question #1
Which fundamental principle is used by an operating system to prevent user applications from directly overwriting or damaging crucial system code?
A. Dynamic Link Libraries
B. Dual-Mode Operation (User Mode vs. Kernel Mode)
C. Spooler Buffering
D. Disk Defragmentation
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Correct Answer: Option B

Explanation:
Dual-mode operation provides hardware-level protection by separating execution into restricted User Mode (for user apps) and privileged Kernel Mode (for the OS kernel).
This question belongs to: Computer Operating Systems
Question #2
In Android, which service allows apps to send and receive messages between components?
A. Content Provider
B. Broadcast Receiver
C. Intent
D. Service
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Correct Answer: Option C

Explanation:
Intents are messaging objects used to request actions from other app components, such as starting an activity or broadcasting.
This question belongs to: Computer Operating Systems
Question #3
Which of the following is a type of real-time scheduling algorithm?
A. Lottery Scheduling
B. Rate Monotonic
C. Round Robin
D. Priority Inheritance
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Correct Answer: Option B

Explanation:
Rate Monotonic is a fixed-priority real-time scheduling algorithm for periodic tasks; others are general-purpose.
This question belongs to: Computer Operating Systems
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