Operating System (OS)
The function of Dir/W is

Shows only directory
All of the listed here
Show only file name and directory name
Show all details of file

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Operating System (OS)
Round-robin scheduling

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

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Operating System (OS)
Data encryption

is mostly used by public networks
is mostly used by financial networks
is not necessary, since data cannot be intercepted
None of these
cannot be used by private installations

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