| 1. | _______ OS pays more attention on the meeting of the time limits. |
| a. | Distributed |
| b. | Network |
| c. | Real time |
| d. | Online |
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Answer: (c).Real time
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| 2. | Real time systems are ________. |
| a. | Primarily used on mainframe computers |
| b. | Used for monitoring events as they occur |
| c. | Used for program development |
| d. | Used for real time interactive users |
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Answer: (b).Used for monitoring events as they occur
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| 3. | In ______ OS, the response time is very critical. |
| a. | Multitasking |
| b. | Batch |
| c. | Online |
| d. | Real-time |
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Answer: (d). Real-time
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| 4. | Which scheduling policy is most suitable for a time-shared operating system |
| a. | Shortest-job First. |
| b. | Elevator. |
| c. | Round-Robin. |
| d. | First-Come-First-Serve. |
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Answer: (c).Round-Robin.
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| 5. | The basic types of OS are ................... |
| a. | batch and time sharing |
| b. | sequential and real time |
| c. | direct and interactive |
| d. | batch and interactive |
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Answer: (d).batch and interactive
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| 6. | In real time operating system |
| a. | all processes have the same priority |
| b. | a task must be serviced by its deadline period |
| c. | process scheduling can be done only once |
| d. | kernel is not required |
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Answer: (b).a task must be serviced by its deadline period
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| 7. | Hard real time operating system has ___ jitter than a soft real time operating system. |
| a. | less |
| b. | more |
| c. | equal |
| d. | none of the mentioned |
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Answer: (a).less
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| 8. | For real time operating systems, interrupt latency should be |
| a. | minimal |
| b. | maximum |
| c. | zero |
| d. | dependent on the scheduling |
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Answer: (a).minimal
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| 9. | In rate monotonic scheduling |
| a. | shorter duration job has higher priority |
| b. | longer duration job has higher priority |
| c. | priority does not depend on the duration of the job |
| d. | none of the mentioned |
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Answer: (a).shorter duration job has higher priority
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| 10. | In which scheduling certain amount of CPU time is allocated to each process? |
| a. | earliest deadline first scheduling |
| b. | proportional share scheduling |
| c. | equal share scheduling |
| d. | none of the mentioned |
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Answer: (b).proportional share scheduling
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