Define a commodity hardware? Does commodity hardware include ram?
Explain the hadoop configuration files at present?
Explain the difference between gen1 and gen2 hadoop with regards to the namenode?
Explain why the name ‘hadoop’?
Define a combiner?
Explain the master class and the output class do?
Explain the features of stand alone (local) mode?
Name the examples of some companies that are using hadoop structure?
What is structured data?
Define streaming access?
Define fault tolerance?
What do sorting do?
What is nlineoutputformat?
Explain why do we need hadoop?
Explain the features of pseudo mode?