Posted by: Pdfprep
Post Date: February 19, 2021
Which one of the following statements is FALSE regarding the communication between DataNodes and a federation of NameNodes in Hadoop 2.0?
A . Each DataNode receives commands from one designated master NameNode.
B . DataNodes send periodic heartbeats to all the NameNodes.
C . Each DataNode registers with all the NameNodes.
D . DataNodes send periodic block reports to all the NameNodes.
Answer: A
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