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Hadoop MCQ's

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What does commodity Hardware in Hadoop world mean?
S Hadoop
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Which of the following are NOT big data problem(s)?
S Hadoop
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What does 'Velocity' in Big Data mean?
S Hadoop
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The term Big Data first originated from:
S Hadoop
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Which of the following are example(s) of Real Time Big Data Processing
S Hadoop
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The MapReduce algorithm contains two important tasks, namely __________.
S Hadoop
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Explanation
The MapReduce algorithm contains two important tasks, namely Map and Reduce.
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_____ takes a set of data and converts it into another set of data, where individual elements are broken down into tuples (key/value pairs).
S Hadoop
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Explanation
Map takes a set of data and converts it into another set of data, where individual elements are broken down into tuples (key/value pairs).
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______ task, which takes the output from a map as an input and combines those data tuples into a smaller set of tuples.
S Hadoop
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Explanation
Reduce task, which takes the output from a map as an input and combines those data tuples into a smaller set of tuples.
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In how many stages the MapReduce program executes?
S Hadoop
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Explanation
MapReduce program executes in three stages, namely map stage, shuffle stage, and reduce stage.
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Which of the following is used to schedules jobs and tracks the assign jobs to Task tracker?
S Hadoop
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Explanation
JobTracker schedules jobs and tracks the assign jobs to Task tracker.
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Question and answers in Hadoop, Hadoop multiple choice questions and answers, hadoop Important MCQs, Solved MCQs for hadoop, hadoop MCQs with answers PDF download

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