Questions related to big data platforms such as hadoop and spark are intensive and some of them are very detail.
Hadoop Engineer Interview Questions
225 hadoop engineer interview questions shared by candidates
Hadoop related questions
How to readcencoded file in map reduce,how to fetch rdbms data through hive without using sqoop
More related to architecture and performance Difference between hive and hbase? Why set hive.execution.engine = tez; works faster than mapreduce job? How can we provide good performance except partioning and bucketing? What all techniques we can provide for good performance ? Which file format is better ORC or parquet ? Map side join and reduce side join?
How to connect to oracle database through java?
Hadoop, eco system, spark, pyspark, airflow
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
Logical questions like 5 people are sitting in a conference room and want take average of their salaries with a lone condition of no one will get to know the salary of the others.
Map & flat map transformation What is shuffling About details in project Spark session
Mostly about hadoop, spark, hive, sql.
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