G.R.M. Junior college practice test 2026

Computer science practice test 2026

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1. _______is a service of memory management of operating system.

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2. If page size of 4MB memory is 2 kb then the number of higher order bits
on address bus, used to denote page numbers is _________

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3. ________ is generally used in GUI to look at the information which is not
currently visible on screen.

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4. ________ control in GUI allows to select only one option from the given
options.

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5. In ___________ method of memory management system logical divisions
of a program are of variable sizes.

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6. Operating system maintains all the information about each process in a
data structure called ________

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7. ‘Open files’ is a system call provided under _________ of operating system.

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8. Operating system is a __________

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9. Device drivers are ____________

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10. Concentric circles on disk surface are known as _______

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11. _______ is allotted to every process so that a process does not use the
CPU indefinitely.

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12. _______ process scheduling is most suitable for real time systems.

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13. When a process is waiting for an external event like I/O, it is in
___________ state.

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14. ________ is not an operating system.

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15. _______ is a free operating system

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16. _________ spread more rapidly in computer networks but do not cause
direct harm to computer system.

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17. Wastage of memory space within the partition is called as __________

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18. In Magnetic tapes __________ access method is used.

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19. Device drivers are ____________

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20. Time taken to adjust the appropriate sector under read /write head in disk
is called as ____________.

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21. In multiprogramming operating system, the number of processes running
simultaneously is known as _______.

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22. In Non-preemptive philosophy of process scheduling
throughput __________

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23. _______ cannot work independently.

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24. _________ is also known as light weight process.

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25. When a page which is not in main memory is reference then _________
occurs.

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26. Program under execution is known as __________

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27. Windows 98 is a __________ operating system.

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28. Memory management service of operating system manages allocations of
_______

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29. ____ is a logical unit of data that operating system defines for its
convenience.

Your score is

The average score is 40%

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