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 mentionedThe question was asked in an interview for internship.My enquiry is from Security topic in chapter Working of MapReduce of Hadoop

Point out the wrong statement.(a) Data transfer protocol of DataNode d

1.	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 mentionedThe question was asked in an interview for internship.My enquiry is from Security topic in chapter Working of MapReduce of Hadoop
Answer» Right option is (d) None of the mentioned Explanation: Authentication is BASED on the assumption that the attacker won’t be ABLE to GET ROOT privileges.

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