Operating System (OS)
If you do not know which version of MS-DOS you are working with, which command will you use after having booted your operating system?

VER command
FORMAT command
DIR command
None of these
DISK command

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Operating System (OS)
The LRU algorithm

pages out pages that have been least used recently
pages out the first page in a given area
pages out pages that have not been used recently
pages out pages that have been used recently
None of these

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Operating System (OS)
Scheduling is

allowing jobs to use the processor
the same regard-less of the purpose of the system
unrelated to performance consideration
None of these
not required in uniprocessor systems

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