📝 Thread suspend and resume in Process management in Window 7

📖 From Operating System • 19. Windows 7 • 5 questions available

Practice MCQs for Thread suspend and resume in Process management 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. What is the primary purpose of an Asynchronous Procedure Call (APC) in the Windows operating system?

🔹 A. To suspend, resume, or terminate threads and deliver I/O completion notifications

🔹 B. To handle hardware interrupts directly

🔹 C. To schedule timer expirations

🔹 D. To replace the dispatcher’s role in thread scheduling

💡 Difficulty: easy | ✅ Correct: A

Q2. Why are user‑mode APCs executed only when a thread is in an alertable wait state?

🔹 A. Because the kernel must be idle

🔹 B. Because alertable waits indicate the thread can safely run asynchronous code without disrupting critical kernel operations

🔹 C. Because APCs need a dedicated CPU core

🔹 D. Because alertable waits increase thread priority

💡 Difficulty: medium | ✅ Correct: A

Q3. System logs show increased latency because DPC routines are taking too long. Which strategy best mitigates this problem while preserving timely interrupt handling?

🔹 A. Move the lengthy work from the DPC to a worker thread via a queued work item

🔹 B. Increase the DPC priority above all hardware interrupts

🔹 C. Disable DPC processing temporarily

🔹 D. Convert the DPC into a kernel‑mode APC

💡 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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