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NIELIT Scientist B 2020 November: 72

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One disk queue with requests for $I/O$ to blocks on cylinders. The Request are in the following manner:

$\text{98 183 37 122 14 124 65 67}$

Considering $SSTF$ (shortest seek time first) scheduling, the total number of head movements is, if the disk head is initially at $53$ is:

  1. $236$
  2. $246$
  3. $220$
  4. $240$
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