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

All 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.
a portion of memory is wasted because the core occupied by the assembler is unavailable to the object program.
None of these

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Operating System (OS)
Which of the following statement is true.

All of these
Seek analysis is used for analysing control-unit busy problems.
None of these
Thrashing is a natural consequence of virtual memory systems.
The LRU algorithm pages out pages that have been used recently

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