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?

DIR command
DISK command
FORMAT command
VER command
None of these

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Operating System (OS)
Thrashing

can always be avoided by swapping
is a natural consequence of virtual memory systems
None of these
always occurs on large computers
can be caused by poor paging algorithms

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