Operating System (OS)
Link encryption

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

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Operating System (OS)
The LRU algorithm

pages out the first page in a given area
pages out pages that have not been used recently
None of these
pages out pages that have been least used recently
pages out pages that have been used recently

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