System Analysis and Design
Back-up procedure helps in

all of the listed here
none of the listed here
restoring the data files whenever there is a system crash
restoring the operation whenever there is a disk failure

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System Analysis and Design
Cost-Benefit analysis

evaluates the tangible and non-tangible factors
None of these
All of these
estimates the hardware and software costs
compares the cost, with the benefits, of introducing a computer-based system

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System Analysis and Design
Direct-access organization

has records placed randomly throughout the file
Stores records sequentially but uses an index to locate records
means storing records in contiguous blocks according to a key.
uses an index for each key type

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

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

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