Welcome to your interview.
The question is on your right: Legacy App to Cloud Data Integration. Take a moment with it first.
Talk your thinking through with me if you like - when you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes). Discussion and graded submissions share your five interviewer interactions, so spend them well.
If you were asked to integrate a legacy field service application with a modern cloud database for NRG Energy, what steps would you take to ensure data integrity?