You have written a Mapper which invokes the following five calls to the outputcollector.collect method: How many times will the Reducer's reduce method be invoked.

The correct answer is D. 5. See the full explanation below for the reasoning.

Question

You have written a Mapper which invokes the following five calls to the outputcollector.collect method:

How many times will the Reducer's reduce method be invoked.

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