What is the default replication factor?
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What are the port numbers of namenode, job tracker and task tracker?
How will you make changes to the default configuration files?
How will format the HDFS ?
What is oozie in hadoop?
Are Namenode and job tracker on the same host?
What is the main purpose of HDFS fsck command?
Can NameNode and DataNode be a commodity hardware?
What is commodity hardware?
when hadoop enter in safe mode?
How does a namenode handle the failure of the data nodes?
What is Hadoop serialization?
Is client the end user in HDFS?
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