What is the difference between SQL and NoSQL?
What is the use of Combiner?
what are the nodes in the Hadoop cluster?
How we can change Replication factor when Data is on the fly?
What do you mean by taskinstance?
What is unstructured data?
What is a block and block scanner in HDFS?
What is hadoop framework?
What is NoSQL?
Why password is needed in ssh localhost?
Define streaming access?
What is a namenode? How many instances of namenode run on a hadoop cluster?
How the Client communicates with HDFS?