Operating System - Processes Questions and Answers

1. Which of the following algorithm have Belady's anamoly?

[A] Optimal replacement

[B] FIFO

[C] LRU

[D] both in FIFO and LRU

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2. For prevention of deadlock which of the following algorithm should be used

[A] Banker’s algorithm

[B] LRU

[C] Paging

[D] SCAN

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3. Non-Preemptive algorithm is

[A] SJF

[B] Round Robin

[C] FIFO

[D] SRTF

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4. Ms-Dos is a type of

[A] Multiuser OS

[B] Time sharing OS

[C] Single user OS

[D] Hybrid OS

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5. Execute more jobs in the same time is

[A] Multiprogramming System

[B] Time sharing System

[C] Distributed System

[D] Hybrid Systems

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6. Mutual Exclusion is not the condition of

[A] To transferring a file

[B] Semaphore

[C] Deadlock

[D] Paging

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7. A collection of software routines are called

[A] Hardware

[B] Operating System

[C] Data files

[D] Multiprogramming

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8. Necessary Conditions for deadlock can occur

[A] No Mutual Exclusion, Hold and Wait, Circular Wait, Preemption.

[B] No Mutual Exclusion, Circular Wait,Preemption, Hold and Wait..

[C] No Mutual Exclusion, Hold and Wait, No Preemption, Circular Wait.

[D] No Preemption, No Mutual Exclusion,Hold and Wait, Circular Wait.

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9. Kernel is not done by

[A] kernel level thread

[B] user level thread

[C] process

[D] none of the mentioned

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10. Occurrence of dining – philosophers problem

[A] 5 philosophers and 5 chopsticks

[B] 4 philosophers and 5 chopsticks

[C] 3 philosophers and 5 chopsticks

[D] 6 philosophers and 5 chopsticks

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Operating System - Processes Questions and Answers

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