Cloudera
CCD-333 · Question #27
CCD-333 Question #27: Real Exam Question with Answer & Explanation
Sign in or unlock CCD-333 to reveal the answer and full explanation for question #27. The question stem and answer options stay visible for context.
Question
In the standard word count MapReduce algorithm, why might using a combiner reduce the overall Job running time?
Options
- ABecause combiners perform local aggregation of word counts, thereby allowing the mappers
- BBecause combiners perform local aggregation of word counts, thereby reducing the number
- CBecause combiners perform local aggregation of word counts, and then transfer that data to
- DBecause combiners perform local aggregation of word counts, thereby reducing the number
Unlock CCD-333 to see the answer
You've previewed enough free CCD-333 questions. Unlock CCD-333 for full answers, explanations, the timed quiz mode, progress tracking, and the master PDF. Question stem and options stay visible so you can still see what's on the exam.