A test engineer is executing a MiL test for a transmission control model. The test case specifies a sequence of gear shifts. After the simulation, the engineer notices that the gear shift times are outside the acceptable range. What should the engineer do next?

Adjust the test case to match the observed behavior

Immediately escalate to a hardware test

Assume the model is correct and report the test as passed

Analyze the model's shift logic and the input signals to identify the cause

During MiL test execution, what does the tester primarily observe to assess the model's behavior?

The temperature and vibration of the electronic components

The physical movement of the vehicle on a test track

The signals and outputs generated by the model in response to test inputs

The memory usage and execution time on the target ECU

A test engineer is setting up a MiL environment for a complex vehicle dynamics model. The model has many parameters that need to be varied across test cases. The test harness must be able to automatically set these parameters and run simulations. Which feature is essential in the test harness?

A graphical user interface for manual parameter entry

Support for batch parameter sweeps and automated test execution

Real-time communication with a target processor

A test engineer is executing a MiL test for a hybrid powertrain model. The test harness is set up to provide driver inputs and measure fuel consumption. During the simulation, the model runs but the fuel consumption output remains constant. What is the most likely cause?

The model is functioning correctly and the fuel consumption is truly constant

The simulation time step is too large

The test harness is not correctly connected to the model's fuel consumption output

The model is not being executed at all

What is the typical execution environment for a MiL test?

A test bench with the actual vehicle components

A real-time simulator connected to the ECU

A cloud-based platform that runs the compiled code on virtual hardware

A software simulation environment running on a development computer

Certified Tester Automotive Software Tester

Domain 3Objective 4

Model in the Loop (MiL) CT-AUT Practice Questions (Page 2)

Part of the Testing in a virtual environment domain, which makes up ~27% of our current practice bank. ISTQB does not publish an official question count, but from its 60-minute exam (~25–40 total, ~7–11 in this domain), expect 1–2 from this objective — we provide 25 practice questions to prepare you well beyond it. (estimate)

25questions here

5free pages

5concepts

Questions 6–10

6application · medium
A test engineer is executing a MiL test for a transmission control model. The test case specifies a sequence of gear shifts. After the simulation, the engineer notices that the gear shift times are outside the acceptable range. What should the engineer do next?
Select an answer first
7foundation · easy
During MiL test execution, what does the tester primarily observe to assess the model's behavior?
Select an answer first
8expert · hard
A test engineer is setting up a MiL environment for a complex vehicle dynamics model. The model has many parameters that need to be varied across test cases. The test harness must be able to automatically set these parameters and run simulations. Which feature is essential in the test harness?
Select an answer first
9application · medium
A test engineer is executing a MiL test for a hybrid powertrain model. The test harness is set up to provide driver inputs and measure fuel consumption. During the simulation, the model runs but the fuel consumption output remains constant. What is the most likely cause?
Select an answer first
10foundation · easy
What is the typical execution environment for a MiL test?
Select an answer first

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