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📝 Computer System Organization

📖 From Operating System • 1. Introduction to Operating System • 6 questions available

Practice MCQs for Computer System Organization. Test your knowledge with carefully crafted questions across easy, medium, and hard difficulty levels.

🔄 Last updated: 2026-07-04

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📝 Sample Questions

Q1. In a modern general-purpose computer system, what is the primary role of the memory controller?

🔹 A. To execute instructions from the CPU.

🔹 B. To synchronize access to shared memory among CPUs and device controllers.

🔹 C. To manage the file system hierarchy on secondary storage.

🔹 D. To translate logical addresses to physical addresses exclusively.

💡 Difficulty: easy | ✅ Correct: B

Q2. What specific action does the CPU take immediately upon receiving an interrupt signal?

🔹 A. It completes the current instruction and saves the state before jumping to the interrupt service routine.

🔹 B. It halts all operations until the user acknowledges the interrupt.

🔹 C. It immediately jumps to the interrupt vector without saving any state.

🔹 D. It switches to user mode to handle the request securely.

💡 Difficulty: medium | ✅ Correct: A

Q3. In a networked I/O scenario, what is the role of the Network Interface Card (NIC) regarding DMA?

🔹 A. The NIC often uses DMA to write incoming packet data directly into main memory buffers, reducing CPU overhead.

🔹 B. The NIC processes the entire TCP/IP stack in hardware.

🔹 C. The NIC prevents any data from entering memory.

🔹 D. The NIC converts USB signals to Ethernet.

💡 Difficulty: hard | ✅ Correct: A

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🔗 Related Topics

📝 Computer System Architecture 📝 Computing Environments 📝 Kernel Data Structures 📝 Memory Management 📝 Open Source Operating Systems

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