What is the difference between Gen1 and Gen2 Hadoop with regards to the Namenode?
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What are the characteristics of hadoop framework?
what is the default replication factor in HDFS?
What is the InputFormat ?
Is client the end user in HDFS?
What are the stable versions of Hadoop?
What is the function of NodeManager?
What is cloudera and why it is used?
Name some companies that use Hadoop?
What is the purpose of dfsadmin tool?
How is security achieved in Apache Hadoop?
What is a task instance in hadoop? Where does it run?
What do you know about sequencefileinputformat?
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