📝 I/O manager in Windows 7

📖 From Operating System • 19. Windows 7 • 17 questions available

Practice MCQs for I/O manager in Windows 7. Test your knowledge with carefully crafted questions across easy, medium, and hard difficulty levels.

🔄 Last updated: 2026-07-27

Easy Questions

Medium Questions

Hard Questions

Q1. A driver needs to access a device using DMA. Which component should the driver call to set up the DMA transfer?

🔹 A. I/O manager

🔹 B. HAL

🔹 C. Kernel Scheduler

🔹 D. User-mode Subsystem

💡 Difficulty: easy | ✅ Correct: B

Q2. Why does Windows require only one version of each device driver per CPU architecture?

🔹 A. Because the I/O manager translates all driver calls

🔹 B. Because the HAL handles chipset‑specific details

🔹 C. Because the executive provides universal APIs

🔹 D. Because the kernel enforces a single driver model

💡 Difficulty: medium | ✅ Correct: B

Q3. Explain how the I/O manager interacts with the HAL when a driver needs to program a PCI device's configuration space.

🔹 A. The I/O manager directly writes to the PCI registers

🔹 B. The I/O manager forwards the request as an IRP to the HAL, which performs the bus‑specific access

🔹 C. The HAL sends an interrupt to the I/O manager to complete the operation

🔹 D. The driver bypasses both and accesses hardware directly

💡 Difficulty: hard | ✅ Correct: B

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