The second-chance page-replacement algorithm
a. Moves pages found at the head of a FIFO queue with the referenced bit turned on back to the tail of the queue to avoid replacing them
b. Searches through a circular list of pages and replaces the first page it encounters that has the referenced bit turned off
c. Relies on a modified bit to determine which page to replace
d. None of the above
Answer: a. Moves pages found at the head of a FIFO queue with the referenced bit turned on back to the tail of the queue to avoid replacing them
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