System Analysis and Design
Inverted list organization

uses an index for each key type
None of these
Stores records sequentially but uses an index to locate records
means storing records in contiguous blocks according to a key.
has records placed randomly throughout the file

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System Analysis and Design
An audit trial is

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

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