What does name-node mean in hadoop?
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What is data cleansing?
What is hadoop? Name the main components of a hadoop application?
What is heartbeat in hadoop?
What are the restriction to the key and value class ?
Can we deploye job tracker other than name node?
Who are ‘Data Scientists’?
Which object can be used to get the progress of a particular job
Mention how hadoop is different from other data processing tools?
Explain what happens when hadoop spawned 50 tasks for a job and one of the task failed?
What sorts of actions does the job tracker process perform?
Name the most common Input Formats defined in Hadoop? Which one is default?
What is a Heartbeat in Hadoop?
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