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When a program tries to access a page that is mapped in address space but not loaded in physical memory, then

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When a program tries to access a page that is mapped in address space but not loaded in physical memory, then ____________
a) segmentation fault occurs
b) fatal error occurs
c) page fault occurs
d) no error occurs

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When a program tries to access a page that is mapped in address space but not loaded in physical memory, then ____________
Correct answer:- 
c) page fault occurs

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