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Normalization
November 25, 2023
Computer-Networks
November 25, 2023
Normalization
November 25, 2023
Computer-Networks
November 25, 2023

Operating-Systems

Question 25

Consider the following five disk access requests of the form (request id, cylinder number) that are present in the disk scheduler queue at a given time.

         (P, 155), (Q, 85), (R, 110), (S, 30), (T, 115) 

Assume the head is positioned at cylinder 100. The scheduler follows Shortest Seek Time First scheduling to service the requests.

Which one of the following statements is FALSE?

A
The head reverses its direction of movement between servicing of Q and P.
B
T is serviced before P.
C
R is serviced before P.
D
Q is serviced after S, but before T.
Question 25 Explanation: 
(P,155)(Q,85)(R,110)(S,30)(T,115)
Correct Answer: D
Question 25 Explanation: 
(P,155)(Q,85)(R,110)(S,30)(T,115)

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