Which disk scheduling algorithm moves the disk head in one direction servicing requests and, after reaching the end, reverses direction?
Options
- A. FCFS
- B. SCAN
- C. C-SCAN
- D. More than one of the above
- E. None of the above
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Quiz Practice:
Correct Answer (Detailed Explanation is Below)
B. SCAN
Detailed Explanation
Explanation: SCAN, also called the elevator algorithm, moves the disk head in one direction while servicing requests. After reaching the end of the disk, it reverses direction and services requests in the opposite direction.