System Analysis and Design
The records in a file on magnetic tape

are meant for backup
cannot be transformed to a disk file
have to be arranged in a key sequence
can only be accessed serially
None of these

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System Analysis and Design
An audit trial is

test data used by the system auditor
All of these
designed to permit tracing of any input record or process performed on a system, back toits original sources
None of these
post-auditing the system after its implementation

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