Your question is Scale Training Across Nodes. Take a moment with it on the right.
Talk me through your thinking if you like. When you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes).
Describe how you would scale a model training job across multiple nodes.
Explain the distributed training strategy, cluster architecture, data sharding, communication pattern, checkpointing, and recovery behavior. Discuss how you would measure scaling efficiency, detect training-serving skew or feature drift, and control cost as the number of workers increases.
