Operating System (OS)
Swapping

allows many programs to use memory simultaneously
does not work with overlaying
None of these
works best with many small partitions
allows each program in turn to use the memory

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Operating System (OS)
Link encryption

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

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