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The working-set window is Δ = 4 page references. For the reference string 3 1 2 1 3 4 4 5, what is the size of the working set after the la…

1985Medium DSSSB TGT Computer Science 0 replies 1 views

The working-set window is Δ = 4 page references. For the reference string 3 1 2 1 3 4 4 5, what is the size of the working set after the last reference?

Correct answer: A

Explanation

The last four references are 3, 4, 4, 5, which involve the distinct pages 3, 4 and 5, so the working set has size 3.

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