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MapReduce has two tasks, map and reduce. Together, what do these two tasks do?
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Which external component is the first stage of operation in the Hadoop ecosystem?
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Nodes are single systems that are responsible for storing and processing data. Which node is known as a data node in HDFS?
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What is the maximum data size Hive can handle?
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Which HBase component has 2 sub components – HFile and Memstore?
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