Computer Fundamentals Mcqs

Page No. 60

Separation of user logical memory and physical memory is ___________


aMemory control

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bMemory management

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c Memory sharing

✖


dVirtual memory

✓


View Answer Virtual memory

Logical Address space can be larger than physical address space.


a True

✓


b False

✖


ceither A. or B.

✖


dNone of these

✖


View Answer True

Virtual Memory can be implemented via __________


aDemand Paging

✓


bLogical paging

✖


c Structural way

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dSimple division

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View Answer Demand Paging

COW stands for?


aCopy over write

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bConvert over write

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c Count over write

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d Copy over write

✓


View Answer Copy over write

LRU stands for?


aLeast Recently used

✓


bLess Recently used

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cLeast Recurrently used

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d Least Randomly used

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View Answer Least Recently used

An allocation that uses a proportional allocation scheme using priorities rather than size.


aPriority allocation

✓


bFile allocation

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cPreference allocation

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dSimple allocation

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View Answer Priority allocation

A process selects a replacement frame from the set of all frames.


aLocal replacement

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bGlobal replacement

✓


cBlock replacement

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d Module replacement

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View Answer Global replacement

Any program, no matter how small, occupies an entire partition. This is called _____________


afragmentation

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bprior fragmentation

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cinternal fragmentation

✓


d external fragmentation

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A process is busy swapping pages in and out.


aThrashing

✓


bCompaction

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cExternal Fragmentation

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dDivision

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View Answer Thrashing

____________ is one or more physically contiguous pages.


aSlab

✓


bCache

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cObject

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dAllocator

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View Answer Slab

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