The results generated in the Map phase are combined in the ________ phase.
A)control
B)Reduce
C)construct
D)Pig

Question

Quizplus · Accepted Answer

The Reduce phase is responsible for combining the results generated in the Map phase. The key-value pairs produced in the Map phase are sorted and grouped by keys in the Reduce phase, and then aggregated to produce a final output. Therefore, the correct choice is B) Reduce. Answer A and C are not relevant to the context of MapReduce, and answer D is a technology that uses Pig Latin script to analyze data on Hadoop, but it is not directly related to the MapReduce framework.

The Results Generated in the Map Phase Are Combined in the ________