Operating System (OS)
Round-robin scheduling

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

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Operating System (OS)
A public key encryption system

None of these
allows anyone to decode the transmission
allows only the correct sender to decode the data
does not encode the data before transmitting it
allows only the correct receiver to decode the data

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