Applying LRU page replacement to the reference string 1 2 4 5 2 1 2 4, the main memory can accommodate 3 pages and it already holds pages 1 and 2…

Applying LRU page replacement to the reference string 1 2 4 5 2 1 2 4, the main memory can accommodate 3 pages and it already holds pages 1 and 2 (page 1 came in before page 2). How many page faults will occur?

  1. a) 3
  2. b) 4
  3. c) 5
  4. d) 6

From the Combined Bank Senior Officer October 2021 – Preliminary exam, question 20 of 108.

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