Explain the core components of hadoop?
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What are active and passive "NameNodes"?
Explain the overview of hadoop history breifly?
What problems can be addressed by using Zookeeper?
How would you tackle counting words in several text documents?
What are the additional benefits YARN brings in to Hadoop?
What is the difference between rdbms and hadoop?
How do you categorize a big data?
What is Writable & WritableComparable interface?
What is InputSplit and RecordReader?
Knox and Hadoop Development Tools?
What is compute and Storage nodes?
What are the problems with Hadoop 1.0?
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