What is the default replication factor and how will you change it?
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Explain what is sequencefileinputformat?
What does name-node mean in hadoop?
What happens if you don?t override the mapper methods and keep them as it is?
What are the side effects of not running a secondary name node?
Which operating system(s) are supported for production hadoop deployment?
What kind of hardware is best for hadoop?
What does secondary name-node means?
List of some best tools that can be useful for data-analysis?
What is pseudo-distributed mode?
Can you define udf?
What is Fault Tolerance?
How to create hadoop archive?
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