Explore the top 25 Data Architecture interview questions and answers designed for beginners. Learn about data models, warehouses, lakes, governance, ETL, and more to strengthen your foundation in modern data management.
Preparing for a data engineering interview? This comprehensive guide covers the top 50 data engineering interview questions and answers, ranging from fundamentals like OLTP vs OLAP and schema evolution to advanced topics such as Spark optimization, Kafka reliability, and cloud data warehouses like Snowflake and Redshift. Each question is explained with clear summaries, practical examples, and insights into modern big data tools, making it the perfect resource for students, professionals, and job seekers aiming to excel in 2026 and beyond.