Operating System Questions Answers - Chapter 1
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1. Main function of shared memory is:
- to use primary memory efficently
- to do intra process communication
- to do inter process communication
- none of above
Answer And Explanation
Answer: Option C
Explanation:
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2. 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
Answer And Explanation
Answer: Option B
Explanation:
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3. 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
Answer And Explanation
Answer: Option C
Explanation:
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4. 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
Answer And Explanation
Answer: Option B
Explanation:
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5. Belady anamoly occurs in
- Optimal replacement
- FIFO
- LRU
- both in FIFO and LRU
Answer And Explanation
Answer: Option B
Explanation:
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6. Which scheduling policy is best suited for time-sharing operating systems
- Shortest job first
- Round robin
- First come first serve
- Elevator
Answer And Explanation
Answer: Option B
Explanation:
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7. Memory protection is normally done by
- the processor and the associated hardware
- the operating system
- the compiler
- the user program
Answer And Explanation
Answer: Option A
Explanation:
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Monal Saxena 7 years ago
please sir provide the exact syllabus mppsc IT
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Rajeev Sharma 8 years ago
sir please let me know where can i get last years papaers of it officer
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sunny sahota 8 years ago
sir pls provide me a questions related to MS word,power point and excel
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Anil 9 years ago
I have doubt in question no 14. I think question is wrong ,because it is not possible .....context switching will definitely takes place.
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AMJAD RIAZ 9 years ago
I HAVE A DOUBTE IN QUESTION NO 11 PLEAZ SIR EXPLAIN IT?
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rashmi 10 years ago
plzz provide some more qstn