Operating System Questions & Answers (Compiled from UPSC, SSC ,PSC ,IBPS previous question papers)

Belady anamoly occurs in
Optimal replacement
FIFO
LRU
both in FIFO and LRU

Disk scheduling includes deciding
which should be accessed next
order in which disk access requests must be serviced
the physical location of the file
the logical location of the file

Which one is true
The linkage editor is used to edit programs which have to later link together
The linkage editor links object module during compiling
The linkage editor links objects modules and resolves external references between them before loading
none of above

If the property of locality of reference is well pronounced in a program
the number of page faults will be more
the number of page faults will be less
the number of page faults will same
none of above

Main function of shared memory is:
to use primary memory efficently
to do intra process communication
to do inter process communication
none of above

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Operating System Question Answers, PSC, UPSC, IBPS, SSC Previous Papers