📝 Virtual memory in The Linux System

📖 From Operating System • 18. The Linux System • 40 questions available

Practice MCQs for Virtual memory 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 calls clone() with only the CLONE_VM flag. Which resource is shared between the parent and child?

🔹 A. The memory address space

🔹 B. The file‑system information

🔹 C. The set of open files

🔹 D. No resources are shared

💡 Difficulty: easy | ✅ Correct: A

Q2. Why does storing a process’s virtual‑memory context in a separate substructure allow Linux to treat threads and processes similarly?

🔹 A. Because the CPU registers are duplicated for each thread

🔹 B. Because each thread gets its own page table

🔹 C. Because the memory context can be shared or isolated independently of other resources

🔹 D. Because Linux copies the entire process image for every thread

💡 Difficulty: medium | ✅ Correct: C

Q3. Compare fork() with clone() called without any flags. Which statement best describes their differences in resource sharing and performance?

🔹 A. Both share all resources, but clone() is faster

🔹 B. fork() shares memory, clone() does not

🔹 C. fork() creates a completely independent copy, while clone() without flags still creates an independent copy but incurs extra overhead for handling separate subcontexts

🔹 D. clone() without flags behaves exactly like fork() with no performance difference

💡 Difficulty: hard | ✅ Correct: C

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🔗 Related Topics

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

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