What is your favourite tool in the hadoop ecosystem?
What is the function of NodeManager?
what is pig?
What are the steps involved in MapReduce framework?
explain Metadata in Namenode?
What is a 'block' in HDFS?
What is Derby database?
How many Daemon processes run on a Hadoop system?
What are the limitations of importing RDBMS tables into Hcatalog directly?
How the Client communicates with HDFS?
What is NoSQL?
What is Row Key?
What is a Task instance in Hadoop? Where does it run?1
What is IdentityMapper?
Why do we use Hadoop?