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Apache Hadoop (394) - MapReduce (354)
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Hadoop Interview Questions
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Un-Answered Questions { Hadoop }
What is kafka?
What is the difference between reducebykey and groupbykey?
When should be hadoop archive create?
How would you import data from MYSQL into HDFS ?
What is Hadoop HDFS – Hadoop Distributed File System?
How to perform the inter-cluster data copying work in HDFS?
What are the various uses of explode hive?
What is spark submit?
List down the languages supported by Apache Spark?
Explain leftOuterJoin() and rightOuterJoin() operation in Apache Spark?
What is the difference between rdd and dataframe?
What is the difference between hbase and hadoop/hdfs?
How to write a query in Cassandra?
Explain the need for MapReduce while programming in Apache Pig?
Is spark built on top of hadoop?
