📝 Sharing objects between processes in Window 7

📖 From Operating System • 19. Windows 7 • 9 questions available

Practice MCQs for Sharing objects between processes in Window 7. 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 process creates an APC to notify another process that an asynchronous read has finished. Which condition must be true for the target thread to execute the APC?

🔹 A. The thread must be in a non‑alertable wait state.

🔹 B. The thread must be in an alertable wait state.

🔹 C. The thread must be running in user mode.

🔹 D. The thread must have a pending I/O request.

💡 Difficulty: easy | ✅ Correct: B

Q2. Why does the dispatcher schedule Deferred Procedure Calls (DPCs) at a priority lower than device‑interrupt priority but higher than normal thread priority?

🔹 A. To ensure DPCs never preempt each other.

🔹 B. To allow urgent ISR work to finish before any DPC runs, while still preventing ordinary threads from delaying DPC execution.

🔹 C. To give DPCs the same priority as user‑mode APCs.

🔹 D. To guarantee that DPCs run only on a separate processor core.

💡 Difficulty: medium | ✅ Correct: A

Q3. What is the primary reason the dispatcher may forward work from an ISR or DPC to a pool of worker threads?

🔹 A. To avoid violating the DPC’s restriction against paging operations.

🔹 B. To increase the priority of the work above device interrupts.

🔹 C. To allow the work to run in user mode with full privileges.

🔹 D. To guarantee the work executes on a separate CPU core.

💡 Difficulty: hard | ✅ Correct: B

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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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