Interview Q & AOn this pageData Engineering Interview QuestionsData Engineering Interview PreparationPrepare for product-based companies, FAANG, and top startups through deep, scenario-driven interview questions grounded in real systems. Interview Tracks DatabricksArchitecture decisions, Delta Lake internals, Unity Catalog, performance tuning, and production-grade design questions.View Questions →PySparkExecution engine internals, shuffle optimization, joins, memory management, debugging, and large-scale ETL scenarios.View Questions →SnowflakeVirtual warehouses, micro-partitions, time travel, cost optimization, and real-world SQL design challenges.View Questions →