Question

______ task, which takes the output from a map as an input and combines those data tuples into a smaller set of tuples.

a.

Map

b.

Reduce

c.

Node

d.

both a and b

Posted under MapReduce Basics Hadoop

Answer: (b).Reduce

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Q. ______ task, which takes the output from a map as an input and combines those data tuples into a smaller set of tuples.

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