Page replacement algorithm LRU FIFO – Computer System Architecture

Question 1 UGC NET June-2020    
Consider a hypothetical machine with 3 pages of physical memory, 5 pages of virtual memory, and < A,B,C,D,A,B,E,A,B,C,D,E,B,A,B> as the stream of page reference by an application. if P and Q are the number of page faults that the application would incur with FIFO and LRU page replacement algorithms respectively, then (P,Q)=__(Assuming enough space for storing 3 page frames)
A – (11,10)
B – (12,11)
C – (10,11)
D – (11,12)

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Answer – D

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