Explain the use of tasktracker in the hadoop cluster?
On what basis data will be stored on a rack?
What is the difference between HDFS and NAS ?
What is Hadoop serialization?
Did you ever built a production process in hadoop ? If yes then what was the process when your hadoop job fails due to any reason?
Mention what are the data components used by Hadoop?
Is hadoop required for data science?
Why do we use HDFS for applications having large data sets and not when there are lot of small files?
How to enable recycle bin in hadoop?
Explain the features of stand alone (local) mode?
How can we change the split size if our commodity hardware has less storage space?
Explain the use of .mecia class?
what is the typical block size of an HDFS block?