Explain what happens in text format?
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Compare Hadoop and RDBMS?
What a task tracker is in hadoop?
Define a udf?
What are the major differences between Hadoop 2 and Hadoop 3?
What is structured and unstructured data?
What does the high availability of a name-node means?
In hadoop_pid_dir, what does pid stands for?
What are the important modes of hadoop?
Can we use windows for hadoop?
Mention how hadoop is different from other data processing tools?
What is difference between reducer and combiner?
Is hadoop still in demand?
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