Outcome of various joins using sample data.
Sr Data Engineer Interview Questions
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ELT, how you will extract and stitch the data using microservices, airflow DAGs, operators.
How does analytical function like Rank in SQL is more performant than subquery. Explain with a scenario
List the Spark Performance tunning technique
What was the most challenging thing you came across in your last project you worked for and how did you overcome that.
In the given array, move all 0's to the end of it while maintaining the relative order of the non-zero elements.
Design a solution for things they are actively working on.
Recruiters question was tell me about yourself? About your project? Past experiances why did you choose this company? Then they handover the task.
Q: What was the one thing that they asked you?
Prisoner's dilemma Two members of a criminal gang are arrested and imprisoned. Each prisoner is in solitary confinement with no means of speaking to or exchanging messages with the other. The police admit they don't have enough evidence to convict the pair on the principal charge. They plan to sentence both to a year in prison on a lesser charge. Simultaneously, the police offer each prisoner a Faustian bargain.
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