📝 Windows 7 Exceptions and interrupts

📖 From Operating System • 19. Windows 7 • 13 questions available

Practice MCQs for Windows 7 Exceptions and interrupts. Test your knowledge with carefully crafted questions across easy, medium, and hard difficulty levels.

🔄 Last updated: 2026-07-27

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📝 Sample Questions

Q1. What is an interrupt in Windows OS?

🔹 A. A signal that temporarily halts the CPU to service a hardware or software event.

🔹 B. A method for allocating memory to processes.

🔹 C. A type of user-mode thread scheduling technique.

🔹 D. A security feature that encrypts file system data.

💡 Difficulty: easy | ✅ Correct: A

Q2. Which statement best distinguishes an exception from an interrupt?

🔹 A. Exceptions are generated by external hardware, while interrupts are caused by software errors.

🔹 B. Exceptions occur only in user mode, whereas interrupts are exclusive to kernel mode.

🔹 C. Exceptions are raised by the CPU in response to an error in the executing code, while interrupts are external signals that request service.

🔹 D. Exceptions and interrupts are identical; the terms are interchangeable.

💡 Difficulty: medium | ✅ Correct: A

Q3. Consider a scenario where a timer interrupt (IRQL = CLOCK_LEVEL) occurs during processing of a disk I/O interrupt (IRQL = DISPATCH_LEVEL). Which outcome is correct?

🔹 A. The timer interrupt will preempt the disk I/O handler because timers are always highest priority.

🔹 B. The timer interrupt will be deferred until the DISPATCH_LEVEL handler completes because its IRQL is lower.

🔹 C. Both interrupts will be merged into a single handler at DISPATCH_LEVEL.

🔹 D. The disk I/O handler will be aborted and the timer interrupt will take over.

💡 Difficulty: hard | ✅ Correct: A

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🔗 Related Topics

📝 History of Windows 7 📝 Security in Windows 7 📝 Reliability of Windows 7 📝 Windows and POSIX application compatibility 📝 Windows 7 designed for High performance

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