Siemens Healthineers Interview Question

1. Explained the uml diagram for the treadmill controller with my solution 2. Explain solid principles 3. Which scenario breaks liskov substitution principle 4. Explain few of the design patterns 5.what is a decorator pattern and draw the uml diagram 6. What is program to interface 7. What is dependency injection 8. Which design principle is used in moq for unit testing. Ans: constructor injection