Process | P1 | P2 | P3 | P4 |

Arrival time | 0 | 1 | 3 | 4 |

CPU burst time | 3 | 1 | 3 | Z |

Note – Numerical Type question

- Option : A
- Explanation :

Let’s assume Z = 2, then gantt chart will be,P1 P2 P1 P1 P4 P3 0 1 2 3 4 6 9

Average waiting time,

= {(4-0-3) + (2-1-1) + (9-3-3) + (6-4-2)} / 4

= (1 + 0 + 3 + 0) / 4

= 4 / 4

= 1

So, answer is 2.

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- Option : A
- Explanation :

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54. Consider the following matrix:

The absolute value of the product of Eigen values of R is ____________.Note – Numerical Type question

- Option : C
- Explanation :

Product of eigenvalues is same as the determinant of a matrix.

= 1.2.3.2 = 12

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- Option : A
- Explanation :

Total time to transfer a cache block = 1 + 3 + 8 = 12 cycles

8 W _____________ 12 cycles

8 × 4 bytes ________________ 12 cycles

? B _____________ 1 sec

= 160 x 10^{6}

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