Share a time when you had to explain a complex technical issue to a non-technical stakeholder.
Behavioralmedium
2
Explain how partitioning and bucketing in Hive/Spark optimize queries. What are the trade-offs in bucket count, partition cardinality, and small-file problem? When does over-partitioning or over-bucketing become counterproductive?
SQLmedium
3
How would you handle duplicate or corrupted data in a batch ETL job?
SQLmedium
4
How would you optimize a query fetching sales data across multiple countries with billions of rows?
SQLmedium
5
Write a query to calculate the total revenue generated by each product category.
SQLmedium
6
Write a query to find the top 5 most-sold Adidas products in the last month.
SQLmedium
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