Database System Concepts
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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Please refer to this textbook: “A. Silberschatz, P. B. Galvin and G. Gagne, “Operating System Principles,”7th Edition, John Wiley & Sons Inc., 2006.”

 

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Question:15

A system has the following blocks queued for writing: 8000, 3000, 5000, 2000. The most recently written block was 4500. The block read before that was 2500. (a) What sequence of writes will a C-SCAN algorithm generate? (b) What sequence of writes will a SCAN algorithm generate? (c) What sequence of writes will a FCFS algorithm generate? (d) What sequence of writes will a SSTF algorithm generate? (e) What sequence of writes will a LOOK algorithm generate?

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