Operating System (OS)
A file organization component of a VSAM file is:

entry sequential data set
keyed sequential data set
All of these
None of these
relative record data set

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

All of these
it is necessary to retranslate the user's program deck every time it is run.
a portion of memory is wasted because the core occupied by the assembler is unavailable to the object program.
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.

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Operating System (OS)
The dispatcher

never changes task priorities
None of these
is always small and simple
puts tasks in I/O wait
actually schedules the tasks into the processor

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