Commonwealth Bank of Australia Data Engineer Interview Questions
The questions to prepare for a Commonwealth Bank of Australia Data Engineer interview. Questions from real interview reports rank first. Updated daily.
Remove duplicate records by selected fields while preserving first-seen order using a hash set.
Commonwealth Bank of AustraliaReverse a string using recursion while preserving every character and its order.
Commonwealth Bank of AustraliaFind the top 3 customers in each region by transaction volume using joins, aggregation, and window ranking.
Commonwealth Bank of AustraliaExplain how to profile, clean, and standardize missing or dirty data before analysis.
Commonwealth Bank of AustraliaAggregate completed transaction value by customer segment and product category from dimensional warehouse tables.
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Explain how you improved a slow ETL pipeline on multi-terabyte data, including bottleneck analysis, tuning choices, and validation.
Commonwealth Bank of AustraliaDiscuss experience building cloud-based AI pipelines, including orchestration, processing patterns, infrastructure choices, and data quality controls.
Commonwealth Bank of AustraliaDescribe a practical approach to data governance across shared data pipelines, including quality, ownership, lineage, and controlled data access.
Commonwealth Bank of Australia