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Author Question: What are MapReduce and Hadoop? What will be an ideal response?[br][br][b][color=#A83E49]Question ... (Read 87 times)

washai

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on: Jul 7, 2018
What are MapReduce and Hadoop?
 
  What will be an ideal response?

Question 2

JobClient table violates 1NF on which of the following fields?
 
  A) DateTimeStart B) DateTimeEnd
  C) Phone D) Name
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brittanywood

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Reply #1 on: Jul 7, 2018
Answer to Question 1

MapReduce is a technique for harnessing the power of thousands of computers working in parallel. The basic idea is that the BigData collection is broken into pieces, and hundreds or thousands of independent processors search these pieces for something of interest. Hadoop is an open-source program supported by the Apache Foundation that implements MapReduce on potentially thousands of computers. Hadoop could drive the process of finding and counting the Google search terms, but Google uses its own proprietary version of MapReduce to do so, instead. Hadoop includes a query language titled Pig.

Answer to Question 2

C


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