Question

Point out the wrong statement.

a.

Data transfer protocol of DataNode does not use the RPC framework of Hadoop

b.

Apache Oozie which access the services of Hadoop on behalf of end users need to be able to impersonate end users

c.

DataNode must authenticate itself by using privileged ports which are specified by dfs.datanode.address and dfs.datanode.http.address

d.

None of the mentioned

Posted under Hadoop

Answer: (d).None of the mentioned

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