What is the difference between hadoop and other data processing tools?
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What is the default block size in Hadoop 1 and in Hadoop 2? Can it be changed?
How does NameNode tackle DataNode failures?
Can we call vms as pseudos?
Explain the difference between gen1 and gen2 hadoop with regards to the namenode?
Explain the Job OutputFormat?
Explain the wordcount implementation via hadoop framework ?
What are the Basics of Hadoop?
Explain why the name ‘hadoop’?
What is Apache Hadoop? Why is Hadoop essential for every Big Data application?
What is difference between split and block in hadoop?
What is HDFS ? How it is different from traditional file systems?
What if a namenode has no data?
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