Mention what is data cleansing?
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How many daemon processes run on a hadoop cluster?
Can we write map reduce program in other than java programming language. How?
What are the common types of NOSQL data bases ?
Explain what is webdav in hadoop?
What is tasktracker in hadoop?
What is the role of the secondary namenode?
What are the main components of hadoop?
What are the four modules that make up the Apache Hadoop framework?
Clarify what is sqoop in hadoop?
Can we use windows for hadoop?
Ideally what should be the block size in hadoop?
Explain what is speculative execution?
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