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Hadoop · Q18

MapReduce Programming Model

Programming · Hadoop · question 18

Q18

What is the primary function of the MapReduce "Sort" phase?

A.
Sort and shuffle data
Answer
B.
Combine intermediate key-value pairs on the mapper side
C.
Aggregate values on the reducer side
D.
Distribute data to reducers

Answer: Option A

Solution

Answer: Option A
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