Hadoop, Spark and sqoop questions. Programming questions in online test
Big Data Engineer Interview Questions
1,228 big data engineer interview questions shared by candidates
Telephonic- Bucketing Partitioning What happens if the file size is more than the memory in driver Spark architecture Basic hive Sql queries Partitioning in spark Coalesce in spark Query execution sequence Second technical- he was very humble to understand my part of work. Mainly about the kind of work i have done in past. SQL scenarios Data warehousing Big data basics Case study on insurance company - how would i store the data what tables should have what columns and how to store them for easy retrieval in big data environment. How to read xml files Diff xml and json files Managerial- it ws a basic QnA HR-normal HR discussion . Nice experience over all
Technical interview questions were from hive,sqoop,python, map reduce, hdfs, basic of spark, little knowledge about the scheduling tools, cluster capacity. Hr include- Tell me something which is not mentioned in resume, do you consider yourself success, Feedback of manager about you
Online test F2F round Managerial HR
The online test had three coding and one SQL question. Coding questions were more stringent than SQL, that came as a surprise to me as the position was for "Big Data Engineer." Feels like they hire anyone without any skill match to the job position or based on the "coolness" of the resume factor.
deploy mode in spark
Complex mysql query faced related to window, joins etc.
Data Lineage? MDM questions on joins. moderate SQL problems Spark
Why do we use parquet file format ? Why dataframes are faster than RDD
What was your role in the project and did you lead the project
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