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Question

What is the purpose of the MapReduce main controller?

a.

To execute the Map phase

b.

To handle network file transfers

c.

To coordinate system activities on each node

d.

To write output records to a distributed file system

Posted under Big Data Computing

Answer: (c).To coordinate system activities on each node Explanation:The purpose of the MapReduce main controller is to coordinate system activities on each node.

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Q. What is the purpose of the MapReduce main controller?

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