Which of the Following Statements About MapReduce Is False

question 29

Multiple Choice

Which of the following statements about MapReduce is false

• A) In the MapReduce step, Hadoop divides the data into batches that it distributes across the nodes in the cluster.
• B) Hadoop also distributes the MapReduce task's code to the nodes in the cluster and executes the code on one node at a time sequentially. Each node processes only the batch of data stored on that node.
• C) The reduction step combines the results from all the nodes to produce the final result.
• D) To coordinate all this, Hadoop uses YARN ("yet another resource negotiator") to manage all the resources in the cluster and schedule tasks for execution.

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Definitions:

Slave Population

The group of people who were forcibly brought to and held in the Americas and other regions to work without freedom or rights from the 16th to 19th centuries.

Imported Africans

Refers to African people forcibly taken from their homelands and transported primarily to the Americas to be sold into slavery from the 16th to the 19th centuries.

Jamestown

The first permanent English settlement in North America, established in Virginia in 1607.

Spanish Rule

The period of history when various territories were under the administrative control and governance of Spain, particularly in the Americas and the Philippines.