Disk of cylinders 0–199, head at 53 moving towards 199. Requests: 98, 183, 37, 122, 14, 124, 65, 67. Total head movement using SCAN is:
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Correct answer: (D) 331
Explanation
53 → 199 = 146, then 199 → 14 = 185; total 331.
From DSSSB TGT Computer Science Full Mock Test 3
This is question 123 of DSSSB TGT Computer Science Full Mock Test 3. See all questions of this paper with answers, or attempt the paper as a timed online test to get your score and all-India rank.