Databricks Certified Data Engineer - Professional
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In the context of Delta Lake's Optimistic Concurrency Control (OCC), consider a scenario where two data engineers are simultaneously working on updating customer records in a Delta table. Engineer A updates the customer's address, while Engineer B updates the same customer's phone number. Both transactions start at the same time but finish at different times. Given this scenario, which of the following best describes how Delta Lake's OCC ensures transaction isolation and handles potential conflicts? Choose the single best answer.