Question: Select the incorrect statement about NameNode and DataNode in HDFS . A . All DataNodes can be non - expensive computers B . DataNode can

Select the incorrect statement about NameNode and DataNode in HDFS.
A. All DataNodes can be non-expensive computers
B. DataNode can communicate among each other
C. One DataNode will be the new NameNode, if the current NameNode fails
D. NameNode works as the "manager", and it is the single-point-failure
Select the incorrect statement about NameNode and

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