Operating System (OS)
Data encryption

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

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Operating System (OS)
What is dispatch latency ?

The whole time taken by all processor
None of the listed here
The time taken by the dispatcher to stop one process and start another
The time taken by the processor to write a file into disk

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