Hadoop Developer Interview Questions
206
Hadoop Developer interview questions shared by candidates
Hadoop Developer was asked...17 April 2023
Map & flat map transformation What is shuffling About details in project Spark session
Hadoop Developer was asked...9 June 2022
Difference between external and internal hive table partitioning and bucketing SQL questions like how to find duplicate records etc spark performance improvement cluster vs client mode in spark
Hadoop Developer was asked...9 May 2022
Spark optimization techniques Hive optimization techniques repartition vs coleasce RDD vs Dataframe File formats Serialization Catalyst optimizer and why Hadoop architecture how do we handle duplicate data and query. Unit testing Job schdeuling
Hadoop Developer was asked...3 May 2022
Hadoop and its inner workings.
Hadoop Developer was asked...19 March 2022
Explain about your last project
Hadoop Developer was asked...18 October 2021
Basic to project related questions on cloud on architecture and job and responsibilities
Hadoop Developer was asked...14 October 2021
Hadoop,Hive and ecosystem , about ptojects and ur role related
Hadoop Developer was asked...22 July 2021
Explain partitioning and bucketing in hive?
Lead Hadoop Developer was asked...16 July 2021
Describe how you implemented MapReduce jobs Describe what data is generated when you run a MR/Tez job Which file format is best to store files in?
1 Answers↳
Best file format (at the time) was ORC as it was compressed and not cleartext/flat file. Parquet is also a good option and is now considered standard (this was before Delta). Less
Hadoop Developer was asked...12 July 2021