Back-to-Back-Testing CT-AUT Practice Questions (Page 4)

Questions 16–18

1. 16foundation · easy

   What is the key aspect of back-to-back testing when comparing model and code behavior?

   • AThe model is executed on the target hardware to match the code's environment.
   • BThe code is modified to match the model's behavior.
   • CThe model is rewritten in a different language to match the code.
   • DThe test cases used for the model and the code are identical.
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2. 17foundation · easy

   What is a key benefit of back-to-back testing in automotive software development?

   • AIt reduces the need for test case design.
   • BIt eliminates the need for any other testing activities.
   • CIt guarantees that the software is free of all defects.
   • DIt helps detect errors introduced during code generation.
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3. 18expert · hard

   In back-to-back testing of an airbag control unit, the model uses a variable-step solver, while the generated code runs on a fixed-step real-time target. The outputs differ slightly due to this difference. The team has set a tolerance of 0.01 V, but the difference is 0.02 V. What should the team do?

   • AInvestigate the cause of the difference before adjusting tolerance
   • BChange the model to use a fixed-step solver
   • CIncrease the tolerance to 0.03 V to accommodate the solver difference
   • DIgnore the difference because it is due to the solver
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