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Hadoop Interview Questions
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Un-Answered Questions { Hadoop }
Explain the core methods of the reducer?
Which are the elements of kafka?
What is difference between map and flatmap?
What is the difference between SQL and NoSQL?
How many types of ambari repositories are available?
Is there an api for implementing graphs in spark?
What is heartbeat in hdfs? Explain.
What is identity mapper and chain mapper?
How job tracker schedules an assignment?
How can we see all the clusters that are available in Ambari?
What are the various data sources available in SparkSQL?
What does a Spark Engine do?
What are the particular functionalities of Ganglia in Ambari?
Define composite type in Cassandra?
How often do you need to reformat the namenode?
