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The ____________ is an iterator which reads through the file and returns objects using the next() method.

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The ____________ is an iterator which reads through the file and returns objects using the next() method.

(a) DatReader

(b) DatumReader

(c) DatumRead

(d) None of the mentioned

This question was posed to me in an interview.

I would like to ask this question from Serialization in portion Hadoop I/O of Hadoop

1 Answer

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Best answer
Correct choice is (b) DatumReader

Easiest explanation: DatumReader reads the content through the DataFileReader implementation.

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