Question: 4 . A memory consists of 4 page frames, currently holding pages 0 - 3 . A 6 - bit aging register is associated with

4. A memory consists of 4 page frames, currently holding pages 0-3. A 6-bit aging register is associated with each frame. The table shows which pages were referenced during each of 8 consecutive periods d.
Period d 01234567
Pages
referenced 31
200
30221

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