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HAT Subject 2026 HEC Aptitude Test Computer Science Operating Systems Free Quiz 3
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HAT Subject 2026 HEC Aptitude Test Computer Science Operating Systems Free Quiz 3

Practice HAT Subject 2026 HEC Aptitude Test Computer Science MCQs from Operating Systems. Get instant results with Explanation.
Practice Quiz 3 for "Operating Systems" (Computer Science). Total 30 MCQs available, split into 3 quizzes. Challenge yourself with advanced application-based questions. Mastering these concepts is essential for securing a high percentile in HAT Subject.
General10 MCQs
1. What is a distributed operating system?
2. What is a real-time operating system (RTOS) used for?
3. What is spooling?
4. What is a system call?
5. Which system call creates a new process?
General10 MCQs
6. What does exec() do?
7. What is a device driver?
8. What is a page fault?
9. What is the LRU page replacement algorithm?
10. What is DMA?

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HAT Subject Test

Conducting Body: Higher Education Commission (HEC)
Frequency: Quarterly | Time: 120 Minutes
Negative Marking: No

⚡ Test Pattern (Total: 100 MCQs):

Merit Formula: There is no single HEC merit calculation formula for HAT Subject Test. Universities determine their own merit criteria. Common weightages include: 30% Academic + 50% HAT + 20% Interview (only where specified by the university)

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