Real questions from top companies in General/Other · hard
Have you worked on Data Warehousing projects?
Retrieve the most recent sale_timestamp for each product (Latest Transaction).
What is the difference between OLTP and OLAP?
Data Storage and Retrieval Optimization techniques
Describe the ZS projects you worked on
Find orders exceeding $1,000 in the last 30 days.
Highlight the tools and technologies you've used in your current project
How would you model customer transaction data for both analytical and operational use cases?
How would you model hierarchical data in a relational database?
Integrating an API with a Database - Steps
What are your strengths, and how do they align with the Data Engineer role?
What is your data volume?
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