DATABASE FUNDAMENTALS
BASICS OF BIG DATA
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Consider the following statements:Statement 1:MapReduce is a programming model and an associated implementation for processing and generating large data sets.Statement 2:Users specify a map function that processes a key / value pair to generate a set of intermediate key / value pairs, and a reduce functions that merges all intermediate values associated with the same intermediate key.
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Only statement 1 is true
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Only statement 2 is true
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Both statements are true
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Both statements are false
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Explanation:
Detailed explanation-1: -MapReduce is a programming model and an associated implementation for processing and generating big data sets with a parallel, distributed algorithm on a cluster.
Detailed explanation-2: -Expert-Verified Answer. MapReduce is a programming framework that allows us to perform distributed and parallel processing on large data sets in a distributed environment.
Detailed explanation-3: -Map Task in MapReduce is performed using the Map() function. This part of the MapReduce is responsible for processing one or more chunks of data and producing the output results.
Detailed explanation-4: -Explanation: Map Task in MapReduce is performed using the Map() function. 4.
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