📝 Grand Central Dispatch

📖 From Operating System • 4. Threads in Operating System • 58 questions available

Practice MCQs for Grand Central Dispatch. 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 a block in Grand Central Dispatch?

🔹 A. A synchronization primitive

🔹 B. A self-contained unit of work

🔹 C. A hardware component

🔹 D. A memory allocation mechanism

💡 Difficulty: easy | ✅ Correct: B

Q2. What is Grand Central Dispatch (GCD)?

🔹 A. A distributed computing framework for Linux

🔹 B. Apple's technology for managing parallel tasks on multicore systems

🔹 C. A programming language for parallel computing

🔹 D. A network protocol for iOS devices

💡 Difficulty: medium | ✅ Correct: B

Q3. What is the primary use of serial queues in Grand Central Dispatch?

🔹 A. To execute tasks in parallel

🔹 B. To ensure sequential execution of several tasks

🔹 C. To manage network requests

🔹 D. To allocate memory

💡 Difficulty: hard | ✅ Correct: B

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