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What are the steps to submit a Hadoop job?
What Mapper does?
Explain how input and output data format of the hadoop framework?
What should be the ideal replication factor in Hadoop Cluster?
What is Apache Hadoop? Why is Hadoop essential for every Big Data application?
What are the hadoop's three configuration files?
Did you ever ran into a lop sided job that resulted in out of memory error
What are the limitations of importing RDBMS tables into Hcatalog directly?
Have you ever used Counters in Hadoop. Give us an example scenario?
what factors the block size takes before creation?
Is map like a pointer?
What is the functionality of jobtracker in hadoop?
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