I wanted to ask people who have already taken the Databricks Certified Professional Data Engineer exam whether Delta Lake is tested in depth or not. While preparing, Iโm currently using the Databricks Certified Professional Data Engineer sample questions from Pass4Future, and Iโve noticed that Delta Lake topics like MERGE operations, OPTIMIZE and Z-ORDER, schema evolution, time travel, and ACID transactions appear quite frequently. This makes me wonder if the real exam focuses heavily on practical, scenario-based Delta Lake questions or if the actual test is more high-level and conceptual. Iโd really appreciate hearing from anyone who has real exam experience and can confirm how deep the Delta Lake coverage actually is.
