What is Identity reducer?
What is Chain Mapper?
What are the core methods of a Reducer?
What are the parameters of mappers and reducers?
What is the difference between TextinputFormat and KeyValueTextInputFormat class?
How is the splitting of file invoked in Hadoop ?
How many InputSplits will be made by hadoop framework?
Explain the usage of Context Object?
List Hadoop’s three configuration files?
What is Distributed Cache in Hadoop?
What is the relationship between Jobs and Tasks in Hadoop?
Who are ‘Data Scientists’?
Tell me some major benefits of Hadoop?
What is structured and unstructured data?
According to IBM, what are the three characteristics of Big Data?