Which of the following is a common page replacement algorithm used to decide which page should be removed from physical memory?

Options

  • A. FIFO
  • B. LRU
  • C. Optimal
  • D. More than one of the above
  • E. None of the above

Correct Answer (Detailed Explanation is Below)

D. More than one of the above

Detailed Explanation

Explanation: FIFO, LRU and Optimal are all page replacement algorithms. FIFO removes the oldest page, LRU removes the least recently used page, and Optimal replaces the page whose next reference occurs farthest in the future.