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Question

In a unit testing of a module, 90% of the code was tested with probability of success 0.9. The reliability of module is _________________.

A
At least greater than 0.9
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B
Equal to 0.9
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C
At most 0.81
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D
At least 1/0.81
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Solution

The correct option is C At most 0.81

In a unit testing of a module, 90% of the code was tested with probability of success 0.9. The reliability of module is At most 0.81

In computer programming, unit testing is a software testing method by which individual units of source code, sets of one or more computer program modules together with associated control data, usage procedures, and operating procedures, are tested to determine whether they are fit for use.

Module testing is the testing of complete code objects as produced by the compiler when built from source. A library may be composed of a single compiled object or several compiled objects. There is only a slight difference between unit testing and module testing.

Unit testing is usually an automated process and performed within the programmers IDE. Unit testing is an action used to validate that separate units of source code remains working properly. Example: - A function, method, Loop or statement in program is working fine. It is executed by the Developer.

Module testing is a process of testing the individual subprograms, subroutines, classes, or procedures in a program. Instead of testing whole software program at once, module testing recommend testing the smaller building blocks of the program. Module testing is largely a white box oriented.


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