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Data Engineer Interview Questions
21,096 data engineer interview questions shared by candidates
Given a database schema, they ask you to connect your laptop to a larger screen and write queries on an online tool.
Many questions were asked. The interviewer cared about technical specifics as well as overall quality and drives as expressed by me.
Do you know what a narrow rdd is and a wide rdd is?
I don't think revealing the questions will benefit you. I can, however, provide general info, regarding the questions i do remember (long interview process spanning over 3 weeks, can't remember it all): 1. Find occurrence frequency as efficiently as possible. 2. Calculate attribute average for huge dataset.
MYSQL queries by joining tables. Resume walkthrough, going deep into technical scenarios. Python code to import the provided CSV file and do necessary transformation and load in to a MySQL server.
They wanted to know my high school math grades and how they compared to those of my classmates.
What is data Engineering
First round was a technical round based on SQL and java questions.It was a pen and paper round.The second round was a technical interview round where the interviewer asked questions on SQL like name different joins,normalization etc
Join three tables... or something along those lines. Again, my SQL is rusty.
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