Welcome to your interview.
The question is on your right: Ethernet vs InfiniBand for AI Clusters. 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.
Walk me through the fundamental differences between Ethernet and InfiniBand networks. Under what conditions would you recommend one over the other for a large-scale AI cluster?