What are the core components of Hadoop?
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Can we deploye job tracker other than name node?
How analysis of Big Data is useful for organizations?
If datanodes increase, then do we need to upgrade namenode?
What is Fault Tolerance?
Clarify what is sqoop in hadoop?
What are the Features of Hadoop?
Explain what happens when hadoop spawned 50 tasks for a job and one of the task failed?
Explain map-only job?
What is LazyOutputFormat in Hadoop?
Can hadoop replace relational database?
How would you check whether your NameNode is working or not?
What happens if you don?t override the mapper methods and keep them as it is?
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