System Analysis and Design
The outstanding Invoice file should be stared on a Pardon Access Storage Device if

invoice data entry is on-line.
inquires concerning payable are to be answered on-line
payment recording is done in a batch rode
None of these
last record points to the first record

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System Analysis and Design
A couple:

is represented by a line joining two modules
None of these
None of these
is a data item that moves from one module to another
means that the upper module has the capability of calling the lower module

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