Operating System (OS)
Data encryption

is mostly used by public networks
is mostly used by financial networks
is not necessary, since data cannot be intercepted
None of these
cannot be used by private installations

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Operating System (OS)
The advantage(s) of incorporating the macro processor into pass 1 is(are):

more flexibility is available to the programmer in that he may use all the features of the assembler in conjunction with macros.
many functions do not have to be implemented twice.
None of these
Functions are combined and it is not necessary to create intermediate files as output from the macros processor and input to the assembler.
All of these

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