📖 From Operating System • 10. Mass Storage Structure • 10 questions available
Practice MCQs for Swap space location. Test your knowledge with carefully crafted questions across easy, medium, and hard difficulty levels.
🔄 Last updated: 2026-07-26
Q1. A system uses the SCAN algorithm with the head starting at cylinder 53 and a request queue [98, 183, 37, 122, 14, 124, 65, 67]. Which request will be serviced first after the head moves toward higher cylinders?
💡 Difficulty: easy | ✅ Correct: B
Q2. Assuming a uniform distribution of requests on a 200‑cylinder disk, which algorithm yields a lower average seek distance: SCAN or C‑SCAN?
💡 Difficulty: medium | ✅ Correct: A
Q3. A disk has 500 cylinders and 20 uniformly random pending requests. Under SCAN starting at cylinder 250 and moving upward, what is the expected number of requests serviced before the head reaches the highest cylinder?
💡 Difficulty: hard | ✅ Correct: B
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