Which state does a process enter if it completes its execution loop but its parent process has not yet read its exit status value via system routines? MCQ with Answer and Explanation

Question
Which state does a process enter if it completes its execution loop but its parent process has not yet read its exit status value via system routines?
A. Blocked State
B. Ready State
C. Orphan State
D. Zombie State
Answer: Option D
Solution (By JKSSB Mock Tests)
A process that has finished execution but still has an entry in the process table is a 'Zombie' process, waiting for its parent to read its exit code.
This question belongs to: Computer Operating Systems
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What is the function of the Android 'Power Manager'?
A. To control screen brightness
B. To handle CPU frequency scaling
C. To manage device power states and battery optimization
D. To manage network connectivity
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Correct Answer: Option C

Explanation:
Power Manager controls power-saving features, sleep modes, and monitors battery usage to extend battery life.
This question belongs to: Computer Operating Systems
Question #2
Which Windows diagnostic boot mode loads the operating system with a minimal set of core drivers and services to facilitate troubleshooting?
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D. Debugging Terminal
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Correct Answer: Option A

Explanation:
Safe Mode isolates operating system configuration bugs by loading only a minimal set of generic device drivers and structural services.
This question belongs to: Computer Operating Systems
Question #3
Which security mechanism in Android keeps individual apps completely isolated from each other so they cannot access another app's data without explicit permission?
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D. Ahead-of-Time Compiling
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Correct Answer: Option C

Explanation:
Android leverages App Sandboxing, backed by Linux user group permissions, to run each application in an isolated environment so it cannot access other applications' operational files.
This question belongs to: Computer Operating Systems
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