Explain the basic difference between traditional rdbms and hadoop?
On which port does ssh work?
What is high availability in hadoop?
Explain the basic architecture of Hadoop?
what factors the block size takes before creation?
What is InputSplit and RecordReader?
Does this lead to security issues?
What is a JobTracker in Hadoop? How many instances of JobTracker run on a Hadoop Cluster?
How to enable recycle bin in hadoop?
What is the sequencefileinputformat in hadoop?
What are the stable versions of Hadoop?
What are the two main parts of the hadoop framework?
Mention what is the use of Context Object?