Welcome to your interview.
The question is on your right: Fault Tolerance with Distributed Storage. 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 does distributed storage like HDFS or cloud object storage integrate with distributed compute engines to ensure fault tolerance?