Real questions from top companies · hard
How do you design a scalable and fault-tolerant data warehouse on a cloud platform?
How to Use Dataflow with BigQuery
How would you design a data model for an e-commerce platform?
How would you optimize a SQL query for better performance when working with large datasets?
In Python, process a large CSV in chunks and remove duplicate records based on email and timestamp.
Indexing - True/False question on indexes and query optimization
Kafka Basics - architecture, topics, partitions, producers, consumers, Zookeeper
SQL Query Design: employees with highest salaries within each department
Schema Design: Star vs. Snowflake schema differences
Snowflake Tech Stack: Deployment on Azure, cluster sizing considerations, and overall data warehouse design?
Time and cost comparisons for executing the same query in Snowflake and Spark.
What are the benefits of BigQuery Warehouse?
What are the benefits of using a cloud data warehouse (e.g., Redshift, Snowflake) for analytics?
What are the key design principles for a cloud-based data warehouse?
What are the trade-offs between relational databases and NoSQL for financial data?
What considerations are important when designing a dimensional model for a ridesharing app?
What is CTE in SQL?
What is a Data Warehouse, and can you explain its Tier-1 and Tier-2 architecture?
What optimizations would you apply for partitioning strategies?
What strategies and technologies would you consider when designing a data warehouse architecture for efficient data storage and retrieval?
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