What is Distributed Cache?
What is difference between secondary namenode, checkpoint namenode & backupnod secondary namenode, a poorly named component of hadoop?
Explain the use of tasktracker in the hadoop cluster?
Explain what is sqoop in Hadoop ?
Explain how is hadoop different from other data processing tools?
What do sorting do?
Explain Erasure Coding in Apache Hadoop?
Is hadoop a memory?
What is HDFS ? How it is different from traditional file systems?
What is a Task instance in Hadoop? Where does it run?1
What is the function of ApplicationMaster?
Where do you specify the Mapper Implementation?
How the HDFS Blocks are replicated?