What happen if a datanode loses network connection for a few minutes?
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What is data cleansing?
What are the tools used in big data?
How would an hadoop administrator deploy various components of hadoop in production?
Mention what is distributed cache in hadoop?
How many maps are there in a particular job?
How can you set an arbitrary number of mappers to be created for a job in Hadoop?
What is the use of context object?
Are job tracker and task trackers present in separate machines?
How jobtracker assign tasks to the tasktracker?
What is Fault Tolerance?
How can native libraries be included in yarn jobs?
Explain how do you overwrite replication factor?
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