Test Case Selection in Practice CT-MBT Practice Questions (Page 2)

Questions 6–10

1. 6foundation · easy

   Which of the following is an example of a risk factor used to prioritize test case selection?

   • AThe color of the user interface
   • BThe number of testers available
   • CThe date the model was created
   • DThe complexity of the system component
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2. 7foundation · easy

   What is a primary benefit of using tool support for test case selection in model-based testing?

   • AIt eliminates the need for human testers
   • BIt removes the need for test oracles
   • CIt guarantees that all defects are found
   • DIt automates the selection of test cases based on predefined criteria
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4. 8expert · hard

   A team is testing a system with multiple components. Component A has a high probability of failure but low impact if it fails. Component B has a low probability of failure but very high impact if it fails. The team has a limited budget. How should they prioritize test case selection?

   • APrioritize Component A because it has a higher probability of failure.
   • BCalculate the risk for each component as probability × impact and prioritize the component with the higher risk value.
   • CPrioritize Component B because it has a higher impact if it fails.
   • DPrioritize both components equally, as both have significant risk.
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5. 9foundation · easy

   In risk-based test case selection, which factor is most likely to increase the priority of a test case?

   • AThe component under test has a high likelihood of failure
   • BThe test case uses a simple input value
   • CThe test case was generated early in the project
   • DThe test case is easy to execute
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6. 10expert · hard

   A team is testing a complex system with a model that has 500 transitions. The test budget is fixed, and the team must decide between achieving high transition coverage or focusing on high-risk areas. The system has a critical module that is rarely used but has severe consequences if it fails. Which approach best balances coverage and risk within the budget?

   • AFocus exclusively on the high-risk module, ignoring other areas.
   • BPrioritize the high-risk module's transitions first, then use remaining budget to maximize transition coverage across the rest of the model.
   • CUse random selection to ensure an unbiased sample of the model.
   • DAchieve 100% transition coverage, even if it means fewer tests for the high-risk module.
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