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Developing MapReduce Applications MCQ question and answer with solution | Hadoop MCQs

Learn Developing MapReduce Applications MCQ Questions and answers with easy and logical explanations in hadoop. Developing MapReduce Applications MCQ question provides all type of technical mcq questions which is important for technical exams, campus exams and other entrance examination. Page-4 section-1

31
. . . . . . . . specifies the number of segments on disk to be merged at the same time.
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Answer & Solution
Answer: Option D
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32
The Mapper implementation processes one line at a time via . . . . . . . . method.
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Answer: Option A
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33
The . . . . . . . . can also be used to distribute both jars and native libraries for use in the map and/or reduce tasks.
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Answer: Option B
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34
Point out the correct statement.
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Answer: Option A
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35
Map output larger than . . . . . . . . percent of the memory allocated to copying map outputs.
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Answer: Option C
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36
Jobs can enable task JVMs to be reused by specifying the job configuration . . . . . . . .
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Answer: Option B
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37
Point out the wrong statement.
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Answer: Option D
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38
Applications can use the . . . . . . . . to report progress and set application-level status messages.
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Answer: Option C
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39
The Hadoop MapReduce framework spawns one map task for each . . . . . . . . generated by the InputFormat for the job.
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Answer: Option B
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40
Which of the following partitions the key space?
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Answer: Option A
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