📝 Thread Local Storage

📖 From Operating System • 4. Threads in Operating System • 40 questions available

Practice MCQs for Thread Local Storage. Test your knowledge with carefully crafted questions across easy, medium, and hard difficulty levels.

🔄 Last updated: 2026-07-08

Easy Questions

Medium Questions

Hard Questions

Q1. What is Thread Local Storage (TLS)?

🔹 A. Data shared by all threads in a process

🔹 B. Data unique to each thread

🔹 C. Data visible only in a single function

🔹 D. Data stored in the kernel

💡 Difficulty: easy | ✅ Correct: B

Q2. When might each thread need its own copy of certain data?

🔹 A. Always

🔹 B. When each thread requires unique information

🔹 C. When memory is limited

🔹 D. When threads share everything

💡 Difficulty: medium | ✅ Correct: B

Q3. How does TLS ensure thread safety?

🔹 A. By using locks

🔹 B. By providing each thread with isolated data

🔹 C. By synchronizing all accesses

🔹 D. By using atomic operations

💡 Difficulty: hard | ✅ Correct: B

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