Explain what is hadoop?
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Clarify what jobtracker is in hadoop? What are the activities followed by hadoop?
What webdav is in hadoop?
What is the number of default partitioner in hadoop?
How can you set an arbitrary number of Reducers to be created for a job in Hadoop?
What is difference between reducer and combiner?
What is Erasure Coding in Hadoop?
What jobtracker is in hadoop? What are the activities followed by hadoop?
Give me an example of document database ?
How Hadoop’s CLASSPATH plays a vital role in starting or stopping in Hadoop daemons?
What are the limitations of Hadoop?
What is namenode?
What is the default replication factor and how will you change it?
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