DBATU Model MCQ – Operating SystemSpread the love Views: 29[adinserter block="1"] Welcome to your Operating System, dated April 21, 2021 1. A computer system has 4K word cache organised in a block set associative manner ,with 4 blocks as per set ,64 words per block .The number of bits in the SET & WORD field of the main memory address format isDeselect Answer15,46,47,24,6 2. Which of the following applications are well suited for batch processing ?Deselect Answerprocess controlvideo game controlmemory controlpreparing mailing addresses 3. A system has 3 processes sharing 4 resources. If each process needs a maximum of 2 units then,deadlockDeselect Answercan never occurmay occurhas to occurNone of the above 4. Fence register is used forDeselect AnswerCPU protectionmemory protectionFile protectionAll of the above 5. Dijkstra's banking algorithm is an operating system that solves the problem ofDeselect AnswerDeadlock avoidanceDeadlock recoveryMutual exclusionContext switching 6. Memory protection is of no use in aDeselect AnswerSingle user systemNon-multiprogramming systemNon -multitasking systemNone of the above 7. Sector interleaving in disks is done byDeselect AnswerThe disk manufaturerThe disk controller cordThe operating systemNone of the above 8. A computer system has 6 tape drives ,with 'n' processes competing for them .Each process may need 3 tape drives .The maximum value of 'n' for which the system is guaranteed to be deadlock free isDeselect Answer2341 9. The size of the virtual memory depends on the size ofDeselect AnswerData busMain memoryAddress busNone of the above 10. In Round Robin CPU scheduling ,as the time quantum is increased,the average turn around time is ,Deselect Answerincreasesdecreasesremains constantvaries irregularly Please fill in the comment box below. [adinserter block="1"]Spread the love