Tell me some major benefits of Hadoop?
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Mention what is rack awareness?
Define “speculative execution” in hadoop?
How does speculative execution work in Hadoop?
What does the mapred.job.tracker command do?
Explain edge nodes in hadoop?
What does the high availability of a name-node means?
What is hadoop? Name the main components of a hadoop application?
How to use combiner in hadoop ?
Explain the usage of Context Object?
What is structured and unstructured data?
Compare Hadoop and RDBMS?
Where are Hadoop’s configuration files located?
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