What is Rack Awareness in Apache Hadoop?
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What is difference between split and block in hadoop?
shouldn't DFS be able to handle large volumes of data already?
What is rack-aware replica placement policy?
How we can change Replication factor when Data is on the fly?
Have you ever used Counters in Hadoop. Give us an example scenario?
Explain the basic difference between traditional rdbms and hadoop?
Explain what if rack 2 and datanode fails?
Explain the core components of hadoop?
What is difference between regular file system and HDFS?
What Mapper does?
Hadoop Libraries and Utilities and Miscellaneous Hadoop Applications?
What is salary of hadoop developer?
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