Operating System (OS)
The disadvantages of "Compile and Go" loading scheme is (are):

None of these
it is very difficult to handle multiple segments, especially if the source programs are in different languages, and to produce orderly modular programs.
it is necessary to retranslate the user's program deck every time it is run.
All of these
a portion of memory is wasted because the core occupied by the assembler is unavailable to the object program.

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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 complete file naming freedom to the users and to permit controlled sharing of files
to provide for long and short term storage of files with appropriate economic tradeoffs.
None of these
All of these

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