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__________ class allows you to specify the InputFormat and Mapper to use on a per-path basis.

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+1 vote
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__________ class allows you to specify the InputFormat and Mapper to use on a per-path basis.

(a) MultipleOutputs

(b) MultipleInputs

(c) SingleInputs

(d) None of the mentioned

I have been asked this question in unit test.

My query is from Mapreduce Formats in portion MapReduce Types and Formats of Hadoop

1 Answer

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Best answer
The correct option is (b) MultipleInputs

Easy explanation: One might be tab-separated plain text, the other a binary sequence file. Even if they are in the same format, they may have different representations, and therefore need to be parsed differently.

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