Explain the basic difference between traditional rdbms and hadoop?
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What is the purpose of dfsadmin tool?
Is hadoop open source?
What is a checkpoint?
Define a task tracker?
Which one is default InputFormat in Hadoop ?
Explain the hadoop configuration files at present?
How many maximum jvm can run on a slave node?
What is MapFile?
What are the core components of Apache Hadoop?
How is the option in Hadoop to skip the bad records?
What do you know about sequencefileinputformat?
Define a daemon?
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