Good Practices of MBT Test Selection CT-MBT Practice Questions (Page 4)

Questions 16–20

1. 16application · medium

   A team models a login module as a state machine with 12 states and 25 transitions. The model has several complex decision points where a single transition condition contains multiple Boolean sub-conditions (e.g., `usernameValid AND passwordValid AND accountActive`). The team has a limited test budget and wants to ensure that every possible outcome of each individual Boolean sub-condition within these decision points is exercised at least once. Which selection criterion should the team apply to their model?

   • AStatement coverage
   • BPath coverage
   • CBranch coverage
   • DCondition coverage
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2. 17foundation · easy

   When combining selection criteria, what is a potential trade-off that testers must manage?

   • AThe test oracle becomes more complex
   • BThe test suite may become too large, exceeding time and budget constraints
   • CThe model becomes less abstract
   • DThe requirements become ambiguous
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4. 18foundation · easy

   What is the main advantage of risk-based test selection?

   • AIt guarantees that all requirements are covered
   • BIt ensures that all statements in the model are executed
   • CIt focuses testing effort on the areas that could cause the most harm if they fail
   • DIt eliminates the need for test oracles
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5. 19foundation · easy

   When using an MBT tool to apply a structural coverage criterion, what does the tool typically do?

   • AIt translates the model into executable code
   • BIt validates the model's syntax and reports errors
   • CIt analyzes the model and selects a set of test cases that achieves the specified coverage level
   • DIt automatically fixes defects in the model
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6. 20application · medium

   A team has used an MBT tool to generate a reduced test suite from a model. They want to evaluate the effectiveness of this reduced suite. They have access to a set of known mutants (fault-injected versions of the model). Which metric is most appropriate for assessing the quality of the selected test cases?

   • AExecution time
   • BMutation score
   • CNumber of test cases
   • DModel size
   Reveal Solution Discussion Select an answer first