In Linux, what does the 'sudo' command do? MCQ with Answer and Explanation
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Question #1
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Which Android subsystem handles the core power management features to optimize battery consumption on mobile chipsets?
Correct Answer: Option A
Explanation:
Android utilizes specialized power management routines (such as Wakelocks) integrated into its Linux kernel base to regulate system sleep cycles and battery drain.
Android utilizes specialized power management routines (such as Wakelocks) integrated into its Linux kernel base to regulate system sleep cycles and battery drain.
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Computer
Operating Systems
Question #2
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Which process state corresponds to a thread that is currently blocked while awaiting an input/output operation to complete?
Correct Answer: Option B
Explanation:
A process enters the Waiting or Blocked state when it cannot continue execution until an external event or hardware I/O transfer concludes.
A process enters the Waiting or Blocked state when it cannot continue execution until an external event or hardware I/O transfer concludes.
This question belongs to:
Computer
Operating Systems
Question #3
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Which Windows keyboard shortcut instantly locks the active user account profile, requiring a password entry to log back in?
Correct Answer: Option C
Explanation:
Pressing Windows Key + L signals the desktop shell interface to lock the active session, securing user documents behind the login screen.
Pressing Windows Key + L signals the desktop shell interface to lock the active session, securing user documents behind the login screen.
This question belongs to:
Computer
Operating Systems
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