Your question is Optimizing Databricks Clusters. 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).
How do you optimize Databricks clusters for high-performance processing, and what strategies do you use for cluster sizing?
Answer in the context of large-scale ETL or ELT jobs on Databricks. Cover how you would tune worker types, autoscaling, Spark settings, shuffle behavior, and job isolation, plus how you decide between fixed-size and autoscaling clusters.