GATE Question Bank » IT » OPERATING SYSTEMS


 
A) Process switches from running to waiting state
B) Process switches from running state to ready state
C) Process switches from waiting state to ready state
D) All of these

 
A) Release all resources before requesting a new resource
B) Number the resources uniquely and never request a lower numbered resource than the last one requested.
C) Never request a resource after releasing any resource
D) Request and all required resources be allocated before execution


 
A) Thrashing
B) Deadlock
C) Starvation, but not deadlock
D) None of the above

 
A) Always decrease the number of page faults
B) Always increase the number of page faults
C) Sometimes increase the number of page faults
D) Never affect the number of page faults

 
A) Register
B) Cache
C) Main memory
D) Disk


 
A) flag [j] = true and turn = i
B) flag [j] = true and turn = j
C) flag [i] = true and turn = j
D) flag [i] = true and turn = i

 
A) exploit the temporal locality of reference in a program
B) exploit the spatial locality of reference in a program
C) reduce the miss penalty
D) none of the above

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