Operating System (OS)
Scheduling is

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

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Operating System (OS)
Link encryption

is more secure than end-to-end encryption
is less secure than end-to-end encryption
None of these
is used only to debug
can not be used in a public network

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