Author Question: What are MapReduce and Hadoop? What will be an ideal response?[br][br][b][color=#A83E49]Question ... (Read 95 times)

washai

  • Hero Member
  • *****
  • Posts: 523
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


brittanywood

  • Sr. Member
  • ****
  • Posts: 355
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



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

In the United States, congenital cytomegalovirus causes one child to become disabled almost every hour. CMV is the leading preventable viral cause of development disability in newborns. These disabilities include hearing or vision loss, and cerebral palsy.

Did you know?

All patients with hyperparathyroidism will develop osteoporosis. The parathyroid glands maintain blood calcium within the normal range. All patients with this disease will continue to lose calcium from their bones every day, and there is no way to prevent the development of osteoporosis as a result.

Did you know?

Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.

Did you know?

Drug abusers experience the following scenario: The pleasure given by their drug (or drugs) of choice is so strong that it is difficult to eradicate even after years of staying away from the substances involved. Certain triggers may cause a drug abuser to relapse. Research shows that long-term drug abuse results in significant changes in brain function that persist long after an individual stops using drugs. It is most important to realize that the same is true of not just illegal substances but alcohol and tobacco as well.

Did you know?

The strongest synthetic topical retinoid drug available, tazarotene, is used to treat sun-damaged skin, acne, and psoriasis.

For a complete list of videos, visit our video library