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Data Science · Q58

Big Data and Distributed Computing

Computer Related · Data Science · question 58

Q58

What is the main purpose of a "Combiner" in the Hadoop MapReduce programming model?

A.
To split data into smaller chunks
B.
To process and aggregate data from Mapper tasks
Answer
C.
To optimize data storage in HDFS
D.
To visualize data relationships

Answer: Option B

Solution

Answer: Option B
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