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
test data used by the system auditor
None of these
post-auditing the system after its implementation

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System Analysis and Design
Reverse video is a technique of

emphasizing data by reversing the foreground and background
None of these
showing data upside down on the screen
hiding confidential data on the screen
showing data with half brightness

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System Analysis and Design
Sequential 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 open rectangle

is a data store-data at rest, or a temporary repository of data
defines a source or destination of system data
represents a process that transforms incoming data flow(s) into outgoing data flows
identifies data flow
None of these

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