System Analysis and Design
Unit testing is

testing changes made in an existing or a new program
is checking the logic of one or more programs in the candidate system
None of these
running the system with line data by the actual user
making sure that the new programs do in fact process certain transactions according to Specifications

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System Analysis and Design
The term Parallel Run refers to

None of these
the same job run on two different computer to test their speeds
All of these
the concurrent operation of an existing system and a new system
the processing of two different jobs initiated from two terminals.

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