Operating System (OS)
The memory allocation scheme subject to "external" fragmentation is

swapping
pure demand paging
multiple contiguous fixed partitions
segmentation
None of these

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Operating System (OS)
The function(s) of file system is (are):

to provide for long and short term storage of files with appropriate economic tradeoffs.
to provide security against loss of information due to system failure
to provide complete file naming freedom to the users and to permit controlled sharing of files
All of these
None of these

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Operating System (OS)
Round-robin scheduling

allows processor-bound tasks more time in the processor
None of these
is quite complex to implement
allows interactive tasks quicker access to the processor
gives each task the same chance at the processor

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Operating System (OS)
Which of the following functions is(are) performed by the loader

None of these
adjust all address dependent locations, such as address constants, to correspond to the allocated space.
physically place the machine instructions and data into memory.
allocate space in memory for the programs and resolve symbolic references between object decks
All of these

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