UGC NET CS 2018 July - II Question 58

58. Consider a virtual page reference string 1, 2, 3, 2, 4, 2, 5, 2, 3, 4. Suppose LRU page replacement
algorithm is implemented with 3 page frames in main memory. Then the number of page
faults are_________.

(1) 5 (2) 7 (3) 9 (4) 10

Answer: 3