MapReduce Types and Formats and Setting up a Hadoop Cluster?
How will you make changes to the default configuration files?
What are the different types of Znodes?
How many instances of JobTracker can run on a Hadoop Cluser?
What's the best way to copy files between HDFS clusters?
Can Apache Kafka be used without Zookeeper?
What is Your Cluster size ?
What is the default block size in hdfs?
What are active and passive "NameNodes"?
It can be possible that a Job has 0 reducers?
What are combiners and its purpose?
On what basis Namenode will decide which datanode to write on?
Can Hadoop be compared to NOSQL database like Cassandra?
What is a Secondary Namenode? Is it a substitute to the Namenode?
what are relational operations in pig latin?