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In which one of the following page replacement algorithms it is possible for the page fault rate to increase even when the number of allocated frames increases? , In which one of the following page replacement algorithms it is possible for the page fault rate to increase even when the number of allocated frames increases?
In which one of the following page replacement algorithms it is possible for the page fault rate to increase even when the number of allocated frames increases?
A.
LRU (Least Recently Used)
LRU (Least Recently Used)
B.
OPT (Optimal Page Replacement)
OPT (Optimal Page Replacement)
C.
MRU (Most Recently Used)
MRU (Most Recently Used)
D.
FIFO (First In First Out)
FIFO (First In First Out)
Solution
D. FIFO (First In First Out)
Explanation
If page fault rate increases even when the number of allocated frames increases, then that situation is called “Belady’s Anamoly”. It was happening with only FIFO among the given options.
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