Explain the hadoop-core configuration?
What is a block and block scanner in HDFS?
Is map like a pointer?
What is a secondary namenode?
What is Row Key?
What are the stable versions of Hadoop?
Explain the basic architecture of Hadoop?
Hadoop Libraries and Utilities and Miscellaneous Hadoop Applications?
How we can change Replication factor when Data is on the fly?
Can you explain how do ‘map’ and ‘reduce’ work?
What are the core components of Apache Hadoop?
Does hadoop always require digital data to process?
shouldn't DFS be able to handle large volumes of data already?