📝 Windows 7 Kernel dispatcher

📖 From Operating System • 19. Windows 7 • 8 questions available

Practice MCQs for Windows 7 Kernel dispatcher. 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. A driver attempts to bypass the HAL and access hardware registers directly. Which outcome is most likely?

🔹 A. The driver will gain faster access without any side effects

🔹 B. The operating system will automatically correct the access

🔹 C. The system may crash or become unstable due to missing abstraction

🔹 D. The driver will be silently ignored by the kernel

💡 Difficulty: easy | ✅ Correct: C

Q2. In a multi‑CPU Windows system, which scheduling mechanism does the kernel dispatcher typically use to ensure fairness among threads of equal priority?

🔹 A. First‑In‑First‑Out (FIFO) queue

🔹 B. Priority‑based pre‑emptive scheduling with round‑robin time slices

🔹 C. Random selection of ready threads

🔹 D. Static allocation of threads to CPUs

💡 Difficulty: medium | ✅ Correct: B

Q3. A driver needs to perform a DMA transfer. Which sequence correctly describes the interaction among the driver, HAL, and kernel dispatcher?

🔹 A. Driver configures DMA → HAL starts transfer → kernel dispatcher handles completion interrupt

🔹 B. HAL configures DMA → driver initiates transfer → kernel dispatcher logs the event

🔹 C. Driver requests DMA → HAL configures hardware → kernel dispatcher initiates transfer and processes interrupt

🔹 D. Kernel dispatcher configures DMA → HAL validates request → driver performs transfer

💡 Difficulty: hard | ✅ Correct: C

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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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