Mention what are the data components used by Hadoop?
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Explain the features of fully distributed mode?
What is cloudera and why it is used?
Explain the Job OutputFormat?
Define a combiner?
Define a namenode?
What is a Secondary Namenode? Is it a substitute to the Namenode?
Explain the hadoop configuration files at present?
What is the default block size in Hadoop 1 and in Hadoop 2? Can it be changed?
What other technologies have you used in hadoop sta ck?
What is difference between secondary namenode, checkpoint namenode & backupnod secondary namenode, a poorly named component of hadoop?
What is hadoop framework?
What are the default configuration files that are used in hadoop?
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