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CCD-410 · Question #16
CCD-410 Question #16: Real Exam Question with Answer & Explanation
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Question
A combiner reduces:
Options
- AThe number of values across different keys in the iterator supplied to a single reduce method call.
- BThe amount of intermediate data that must be transferred between the mapper and reducer.
- CThe number of input files a mapper must process.
- DThe number of output files a reducer must produce.
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