What are the major differences between Hadoop 2 and Hadoop 3?
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Explain some important features of hadoop?
What is data cleansing?
Can you give a detailed overview about the Big Data being generated by Facebook?
Explain how can you debug hadoop code?
What the information segments utilized by hadoop are?
What is LazyOutputFormat in Hadoop?
Whats the default port that jobtrackers listens ?
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