How the HDFS Blocks are replicated?
Define a task tracker?
How to keep HDFS cluster balanced?
How to enable trash/recycle bin in hadoop?
How can we look for the namenode in the browser?
Explain how can we change the split size if our commodity hardware has less storage space?
What do you know about keyvaluetextinputformat?
How many instances of JobTracker can run on a Hadoop Cluser?
What problems can be addressed by using Zookeeper?
How many maximum jvm can run on a slave node?
How can you overwrite the replication factors in HDFS?
explain Metadata in Namenode?
Define streaming access?
What do slaves consist of?
Which is the best hadoop certification?