📝 Kernel synchronization in The Linux System

📖 From Operating System • 18. The Linux System • 18 questions available

Practice MCQs for Kernel synchronization in The Linux System. 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 program creates two tasks using clone() with flags CLONE_FS and CLONE_VM only. Which resource is NOT shared between the parent and child?

🔹 A. Current working directory

🔹 B. Memory space

🔹 C. Open file descriptors

🔹 D. Signal handlers

💡 Difficulty: easy | ✅ Correct: D

Q2. A server program uses clone() with CLONE_VM, CLONE_FS, CLONE_FILES, but not CLONE_SIGHAND. After creating a child task, the parent changes its signal handler for SIGTERM. What happens in the child?

🔹 A. Child receives new handler

🔹 B. Child retains old handler

🔹 C. Child crashes

🔹 D. Child gets no signal

💡 Difficulty: medium | ✅ Correct: B

Q3. A program creates a child task with clone() passing CLONE_VM | CLONE_FS | CLONE_SIGHAND, but not CLONE_FILES. The child opens a new file descriptor. How does this affect the parent?

🔹 A. Parent sees same descriptor

🔹 B. Parent sees none

🔹 C. Parent sees descriptor but cannot use

🔹 D. Parent sees descriptor but it is closed when child exits

💡 Difficulty: hard | ✅ Correct: B

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🔗 Related Topics

📝 Linux History 📝 The Linux kernel 📝 The Linux system 📝 Linux distributions 📝 Linux licensing

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