what is spark.
Data Engineer Interview Questions
Data Engineer Interview Questions
Data engineers are IT professionals who are needed in almost every industry. Data engineers monitor data trends to determine best next steps for companies. A critical part of a data engineer job is to process raw data into usable data by creating data pipelines and building data systems.
Top Data Engineer Interview Questions & How To Answer
Question #1: Can you describe in detail your level of expertise with programming languages?
Question #2: Explain data engineering in your own words.
Question #3: Can you describe your experience working with Apache Hadoop and cloud data management environments?
20,132 data engineer interview questions shared by candidates
The interviewer asked me questions on SQL , JAVA and my project
One dictionary was given need to compare the elements of it with other dict and create new one with key has to sort in order
Why do we need Hadoop ?
2nd round Supposed to be Spark coding Questions like finding out the most recent file in directory using spark, Joining of columns, Simple SQL
coding question; variation of TwoSum - return the number of all pairs that sum to given number. e.g for [3,3,3,3] need to return 6
Questions should be relevant and if the candidate wasn't a match then reject him after looking at the resume rather than asking do you know this and discouraging candidates.
Q: Design a scalable solution to stream data from different data sources to Cassandra.
Solve a provided scenario that involves building multiple lists in Python.
What platforms have you worked with?
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