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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-6 section-1

51
You can delete a column family from a table using the method . . . . . . . . of HBAseAdmin class.
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Answer & Solution
Answer: Option C
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52
. . . . . . . . is percentage of memory relative to the maximum heap size in which map outputs may be retained during the reduce.
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Answer: Option B
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53
. . . . . . . . is the primary interface for a user to describe a MapReduce job to the Hadoop framework for execution.
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Answer: Option B
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54
The standard output (stdout) and error (stderr) streams of the task are read by the TaskTracker and logged to . . . . . . . .
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Answer: Option B
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55
Which of the following is the default Partitioner for Mapreduce?
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Answer: Option C
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56
The . . . . . . . . class provides the getValue() method to read the values from its instance.
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Answer: Option B
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57
Users can control which keys (and hence records) go to which Reducer by implementing a custom?
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Answer: Option A
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58
. . . . . . . . is the primary interface by which user-job interacts with the JobTracker.
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Answer: Option B
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59
Maximum virtual memory of the launched child-task is specified using . . . . . . . .
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Answer: Option B
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60
. . . . . . . . is used to filter log files from the output directory listing.
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Answer: Option B
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