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Hadoop · Q29

MapReduce Programming Model

Programming · Hadoop · question 29

Q29

What is the primary purpose of the MapReduce "Sort and Shuffle" phase?

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

Answer: Option B

Solution

Answer: Option B
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