What is a checkpoint?
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What is speculative execution in Hadoop?
What is structured data?
Is it possible to provide multiple inputs to hadoop? If yes, explain.
What happens in a textinputformat?
Explain the basic difference between traditional rdbms and hadoop?
What does /etc /init.d do?
What is the full form of fsck?
How will you make changes to the default configuration files?
Explain Erasure Coding in Apache Hadoop?
What is IdentityMapper?
Explain the overview of hadoop history breifly?
Hadoop Libraries and Utilities and Miscellaneous Hadoop Applications?