Data Warehouse vs Data Lakehouse vs Data bricks

Sairam Penjarla
2 min readMar 19, 2023

💥The magic Trio I couldn’t miss!💥

Least & advanced interview questions on Database vs Data warehouse vs Data lake

⭐️ Don’t forget to look out for the Cloud too as mentioned here!

✅Can you explain the difference between a database, a data warehouse, and a data lake?

  • How do they differ in terms of architecture, data storage, access, scalability, and performance?
  • Can you give an example of when it would be more appropriate to use a database, data warehouse, or data lake?
  • How do you decide which one to use for a specific use case?

✅How do you handle data integration in a database, data warehouse, and data lake?

  • Can you explain the concepts of ETL, ELT, and EL(extract, load, and transform) and how they are used in the database, data warehouse, and data lakes?
  • How do you handle data quality and data governance in a database, data warehouse, and data lake?
  • Can you give an example of a data integration project you have worked on and explain the approach you took?

✅How do you perform data modeling in a database, data warehouse, and data lake?

  • Can you explain the concept of database schemas and how they are used in databases?
  • How do you perform data modeling in a data warehouse and data lake?
  • Can you give an example of a data modeling project you have worked on and explain the approach you took?

✅How do you handle big data in a database, data warehouse, and data lake?

  • Can you explain the concept of distributed computing and how it is used in databases, data warehouses, and data lakes?
  • How do you handle data partitioning and data compression in a database, data warehouse, and data lake?

✅How do you handle data lineage and data provenance in a database, data warehouse, and data lake?

  • Can you explain the concept of data lineage and data provenance and how it is used in data management?
  • How do you handle data lineage and data provenance in a distributed and cloud environment?
  • Can you give an example of a data lineage and data provenance project you have worked on and explain the approach you took?

✅How do you implement security and access control in a database, data warehouse, and data lake?

  • Can you explain the concept of database security and how it is used in databases and data warehouses?
  • How do you handle data encryption and authentication in a data lake?
  • Can you give an example of a security project you have worked on and explain the approach you took for implementing security and access control in a database, data warehouse, and data lake?

✅How do you handle data warehousing and data lake in a cloud environment?💡

  • Can you explain the concept of cloud data warehousing and cloud data lake and how they are used in cloud computing?
  • How do you handle data partitioning and data compression in a cloud data warehouse and cloud data lake?
  • Can you give an example of a project you have worked on and explain the approach you took for implementing data warehousing and data lake in a cloud environment?

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Sairam Penjarla

Looking for my next opportunity to make change in a BIG way