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    Exam 2: Cloudera Certified Developer for Apache Hadoop (CCDH)
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    What Data Does a Reducer Reduce Method Process
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What Data Does a Reducer Reduce Method Process

Question 2

Question 2

Multiple Choice

What data does a Reducer reduce method process?


A) All the data in a single input file.
B) All data produced by a single mapper.
C) All data for a given key, regardless of which mapper(s) produced it.
D) All data for a given value, regardless of which mapper(s) produced it.

Correct Answer:

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