1. Difference between repartitioning & coalesce 2. Difference between partition & bucketing. What is each significance. 3. How spark write to S3 work internally. 4. Type of joins on Spark 5. Experience on ML/AI models
Sr Data Engineer Interview Questions
2,622 sr data engineer interview questions shared by candidates
Was asked to download a dataset. Questions were regarding data transformations. Was also asked to solve certain python problems
What is Lazy eveluation in spark, exchanging two numbers without using 3rd variable.
Cuéntame algo interesante (entrevista final)
online test was about sql and dwh
SQL Pair Programming Python Pair Programming Lead Round VP Round HR Round
How do i Design Chat Bot ?
sobre mi experiencia y lo que las tecnologías que habia utilizado anteriormente
they mostly ask about your projects that you worked on in detail.
How would I deal with a case in which the data is not fully enriched during the last 7 days in the target fact table? The expected answer was creating 2 tables; one for the history and one for the last 7 days which will be updated by the increments. The users will query the union of both.
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