CAST Software Testing Fundamentals 4

Question 1

What is the main purpose of a stub in integration testing?

Accepted Answer

To replace a module that has not yet been developed

Answer

A stub stands in for a not-yet-available lower-level module that the tested module calls.

Question 2

Which approach to integration testing combines all modules at once?

Accepted Answer

Big-bang integration

Answer

Big-bang integration combines all components simultaneously, making fault isolation harder.

Question 3

What is the key benefit of a driver in bottom-up testing?

Accepted Answer

It replaces a higher-level module not yet built

Answer

A driver simulates a higher-level calling module so lower-level components can be tested first.

Question 4

Which test type confirms the software meets business requirements before release?

Accepted Answer

User acceptance testing

Answer

User acceptance testing validates that the system satisfies business needs and is ready for deployment.

Question 5

What is the difference between an error, a defect, and a failure?

Accepted Answer

An error is a human mistake, a defect is the resulting flaw in code, and a failure is the observed incorrect behavior

Answer

A human error introduces a defect into the code, which can manifest as a failure during execution.

CAST Test Practice Test