How many page faults take place in lru replacement, Operating System

Assignment Help:

Q. Consider the subsequent page reference string:

1, 2, 3, 4, 2, 1, 5, 6, 2, 1, 2, 3, 7, 6, 3, 2, 1, 2, 3, 6.

How many page faults would take place for the following replacement algorithms assuming one, two, three, four, five, six, or else seven frames? Remember all frames are primarily empty therefore your first unique pages will all cost one fault each.

LRU replacement
FIFO replacement
Optimal replacement

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