Operating System (OS)
Link encryption

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

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Operating System (OS)
The function(s) of file system is (are):

to provide security against loss of information due to system failure
to provide for long and short term storage of files with appropriate economic tradeoffs.
to provide complete file naming freedom to the users and to permit controlled sharing of files
None of these
All of these

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