In Linux, the 'export' command is used to: MCQ with Answer and Explanation
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Question #1
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Which mechanism ensures that only one process can execute inside a critical section of code at any given time?
Correct Answer: Option B
Explanation:
Mutual Exclusion (Mutex) guarantees that if a process is executing inside its critical section, no other processes are permitted to enter that code path.
Mutual Exclusion (Mutex) guarantees that if a process is executing inside its critical section, no other processes are permitted to enter that code path.
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Computer
Operating Systems
Question #2
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Which Windows version was the first to introduce the Start Menu?
Correct Answer: Option A
Explanation:
Windows 95 introduced the Start Menu as a central point for accessing programs and settings.
Windows 95 introduced the Start Menu as a central point for accessing programs and settings.
This question belongs to:
Computer
Operating Systems
Question #3
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Which Android component is responsible for managing the lifecycle of an application process?
Correct Answer: Option D
Explanation:
ActivityManager manages the overall application lifecycle, including starting and killing processes based on memory needs.
ActivityManager manages the overall application lifecycle, including starting and killing processes based on memory needs.
This question belongs to:
Computer
Operating Systems
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