What are some of the characteristics of Hadoop framework?
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What is a record reader?
How namenode handles data node failures?
What is the block size in Hadoop?
What are the major differences between Hadoop 2 and Hadoop 3?
What is Erasure Coding in Hadoop?
What are the actions followed by hadoop?
According to IBM, what are the three characteristics of Big Data?
How can one check whether NameNode is working or not?
Have you ever used counters in hadoop?
Clarify what jobtracker is in hadoop? What are the activities followed by hadoop?
In which location name node sores its metadata and why?
If the hadoop administrator needs to make a change, which configuration file does he need to change?
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