Rank the disk scheduling algorithms (FCFS, SSTF, SCAN, and C-SCAN) in terms of their fairness in servicing a continuous stream of disk requests; order them from the most fair to the least fair. Consider a general stream of random disk requests, not a particular workload. (Verify your answer with reasons) OSSTF, SCAN, C-SCAN, FCFS O None of these O FCFS, SSTF, SCAN, C-SCAN OSCAN, C-SCAN, SSTF, FCFS Let's say the reference string is 04142434 2404142434 and we have 3 frames. By using clock algorithm the fault rate is . O 0.3 O 0.2 O 0.4 O 0.6 0.5
Rank the disk scheduling algorithms (FCFS, SSTF, SCAN, and C-SCAN) in terms of their fairness in servicing a continuous stream of disk requests; order them from the most fair to the least fair. Consider a general stream of random disk requests, not a particular workload. (Verify your answer with reasons) OSSTF, SCAN, C-SCAN, FCFS O None of these O FCFS, SSTF, SCAN, C-SCAN OSCAN, C-SCAN, SSTF, FCFS Let's say the reference string is 04142434 2404142434 and we have 3 frames. By using clock algorithm the fault rate is . O 0.3 O 0.2 O 0.4 O 0.6 0.5
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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Transcribed Image Text:Rank the disk scheduling algorithms (FCFS, SSTF, SCAN, and C-SCAN) in terms of their fairness in
servicing a continuous stream of disk requests; order them from the most fair to the least fair.
Consider a general stream of random disk requests, not a particular workload. (Verify your answer
with reasons)
SSTF, SCAN, C-SCAN, FCFS
O None of these
O FCFS, SSTF, SCAN, C-SCAN
O SCAN, C-SCAN, SSTF, FCFS
Let's say the reference string is 04142434
2404142434 and we have 3 frames. By
using clock algorithm the fault rate is.
0.3
O 0.2
0.4
0.6
0.5
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