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CCD-333 · Question #25
CCD-333 Question #25: Real Exam Question with Answer & Explanation
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Question
When is the reduce method first called in a MapReduce job?
Options
- AReduce methods and map methods all start at the beginning of a job, in order to provide
- BReducers start copying intermediate key value pairs from each Mapper as soon as it has
- CReducers start copying intermediate key-value pairs from each Mapper as soon as it has
- DReducers start copying intermediate key-value pairs from each Mapper as soon as it has
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