What is single node cluster in Hadoop? for what all purposes Hadoop run on a single node cluster?
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What is data cleansing?
Which one is default?
List out the some common problems faced by data analyst?
Are there any special requirements for namenode?
Why do we need Hadoop Archives? How is it created?
What are the main components in Hadoop Eco-System and what are their functions ?
What is rack awareness in hadoop?
How can one write custom record reader?
What happen if number of reducer is set to 0 in Hadoop?
What is the difference between TextInputFormat and KeyValueInputFormat class?
What is Federation?
How do you overwrite replication factor?
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