What are channel selectors?
What are the stable versions of Hadoop?
Input Split & Record Reader and what they do?
what is the default replication factor in HDFS?
How indexing is done in HDFS?
Why are the number of splits equal to the number of maps?
What are the two main components of ResourceManager?
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"?