You have the following key-value pairs as output from your Map task: (the, 1) (fox, 1) (faster, 1) (than, 1) (the, 1) (dog, 1) How many keys will be passed to the Reducer's reduce method?

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Developing with Apache Spark Core

Question

You have the following key-value pairs as output from your Map task:

(the, 1) (fox, 1) (faster, 1) (than, 1) (the, 1) (dog, 1) How many keys will be passed to the Reducer's reduce method?

Options

ASix
BFive
CFour
DTwo
EOne
FThree

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Topics

#reducer keys#key grouping#unique keys#MapReduce output

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