MBT in Sequential and Iterative Software Development Lifecycles CT-MBT Practice Questions (Page 4)

Questions 16–20

1. 16foundation · easy

   In an iterative SDLC, how are MBT activities performed?

   • AOnly when defects are found
   • BAs a one-time upfront effort
   • CIn each iteration, with models refined based on feedback
   • DOnly during the final iteration
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2. 17application · medium

   An agile team is using MBT for a mobile app. They have a model that represents the app's core features. During a sprint, a new feature is added, and the model is updated. What is the immediate next step in the MBT process?

   • AReview the model with stakeholders to ensure it is correct before generating tests.
   • BArchive the old model and create a completely new model from scratch.
   • CWait until the next sprint to generate tests to avoid disrupting the current sprint's plan.
   • DRegenerate test cases from the updated model and execute them in the current sprint.
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4. 18expert · hard

   An agile team is using MBT and has a model that is updated each sprint. However, they notice that the generated tests are becoming too numerous and redundant, slowing down execution. What is the best way to manage this?

   • AApply test selection techniques to choose a subset of tests based on the changes in the model.
   • BIncrease the model's granularity to generate more specific tests.
   • CExecute all tests in every sprint to ensure full coverage.
   • DRemove all old tests and only keep the newly generated ones.
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5. 19application · medium

   A company is considering adopting MBT. They are deciding between a sequential and an iterative SDLC. Which benefit of MBT is more pronounced in an iterative SDLC compared to a sequential one?

   • AReduced cost of test maintenance because models are created once and reused.
   • BContinuous feedback from generated tests that helps refine both the model and the product in each iteration.
   • CEarly defect detection through model-based test generation in the requirements phase.
   • DSimpler traceability from requirements to tests because requirements are stable.
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6. 20foundation · easy

   In an iterative (agile) SDLC, which statement best describes the phases?

   • APhases are repeated in cycles, with each iteration producing a working increment
   • BPhases are skipped to save time
   • CPhases are performed once in a fixed order
   • DOnly the testing phase is repeated
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