Welcome to your interview.
The question is on your right: Data Integrity in Data Migration. 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.
How do you ensure data integrity and validation when migrating customer data from an external system into a core database for Realpage?