What do you understand by a closure in scala?
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Name the most common Input Formats defined in Hadoop? Which one is default?
Explain what is sequencefileinputformat?
Doesn’t google have its very own version of dfs?
Explain the common input formats in hadoop?
Define a sequence file in hadoop?
What happen if one of the datanodes has much slower cpu?
Explain what is namenode in hadoop?
What is hadoop? Name the main components of a hadoop application?
Mention what is the data storage component used by hadoop?
What happens if you get a ‘connection refused java exception’ when you type hadoop fsck /?
What are the functionalities of jobtracer?
Explain what is a task tracker in hadoop?
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