Give me an example of document database ?
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What are the four modules that make up the Apache Hadoop framework?
Which one is default?
What type of data hadoop can handle ?
What are the main features and Characteristics of Hadoop which makes it the most popular and powerful Big Data tool?
Where are hadoop’s configuration files located and list them?
What does name-node mean in hadoop?
Compare Hadoop and RDBMS?
What is difference between secondary namenode, checkpoint namenode & backupnode?
Is Namenode machine same as DataNode machine as in terms of hardware?
Explain map-only job?
What do you understand by standalone (or local) mode?
What is Mapper in Hadoop?
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