Misleading Expectations and Pitfalls of MBT CT-MBT Practice Questions (Page 6)

Questions 26–30

1. 26expert · hard

   A team has a well-maintained model of a system's core functionality. However, a recent change to the system introduced a new feature that was not added to the model. The team runs the MBT tool and all tests pass. They believe the system is working correctly. What is the most significant risk in this situation?

   • AThe team will have a false sense of security because the new feature is untested.
   • BThe test environment will fail to execute the generated tests.
   • CThe MBT tool will generate tests for the new feature automatically.
   • DThe test oracle will produce incorrect results for the new feature.
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2. 27application · medium

   A team creates a detailed model of a user interface workflow. However, they do not include any error handling or alternative flows in the model. The generated tests all pass, but the application crashes when users enter invalid data. What is the most likely reason the tests did not catch this defect?

   • AThe MBT tool has a bug in its test generation algorithm.
   • BThe test oracle is not validating the correct expected results.
   • CThe model quality is poor because it does not cover error handling and alternative flows.
   • DThe test environment is not configured to simulate user errors.
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4. 28expert · hard

   A company selects an MBT tool that is powerful but has a steep learning curve. The team spends several weeks learning the tool, which delays the start of modeling. The project is now behind schedule. The project manager is considering switching to a simpler tool. What is the most important consideration in this decision?

   • AThe project manager should abandon MBT altogether.
   • BThe simpler tool will always be less effective than the powerful tool.
   • CThe team should continue with the current tool because they have already invested time in learning it.
   • DThe simpler tool may not have the features needed for the project's complexity.
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5. 29foundation · easy

   What is a typical challenge when integrating an MBT tool with an existing test environment?

   • AThe MBT tool may not easily export generated tests in the format required by the existing test management tool.
   • BThe MBT tool will automatically adapt to the existing test management system without any effort.
   • CThe MBT tool cannot be used with any test execution tool.
   • DThe MBT tool will replace the existing test management tool entirely.
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6. 30foundation · easy

   How can poor model quality affect the results of MBT?

   • AIt has no effect because the MBT tool validates the model before generating tests.
   • BIt only affects the performance of the tool, not the quality of the tests.
   • CIt can lead to generated tests that are incomplete or incorrect, giving a false sense of coverage.
   • DIt causes the tool to generate more tests than needed, which is always beneficial.
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