6. CPU Scheduling - Operating System

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Practice MCQs for 6. CPU Scheduling. Test your knowledge with carefully crafted questions across easy, medium, and hard difficulty levels.

🔄 Last updated: 2026-07-10

360

Easy Questions

607

Medium Questions

603

Hard Questions

Q1. What is the fundamental limitation of a single-processor system regarding process execution?

🔹 A. Multiple processes can execute simultaneously

🔹 B. Only one process can run at any given time

🔹 C. Processes execute in parallel

🔹 D. The CPU can handle unlimited processes

💡 Difficulty: easy | ✅ Correct: B

Q2. What occurs during a context switch when a process must wait for I/O?

🔹 A. The process is terminated

🔹 B. The OS saves the current process state and loads another process

🔹 C. The process continues in background

🔹 D. The CPU frequency is reduced

💡 Difficulty: medium | ✅ Correct: B

Q3. What distinguishes a CPU-bound process from an I/O-bound process in the context of CPU-I/O bursts?

🔹 A. CPU-bound processes have longer CPU bursts and shorter I/O bursts

🔹 B. CPU-bound processes have shorter CPU bursts

🔹 C. I/O-bound processes have no CPU bursts

🔹 D. CPU-bound processes never perform I/O

💡 Difficulty: hard | ✅ Correct: A

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