Explanation:AES offers the greatest cryptographic strength and the best performance. 5. 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
Answer:A
Explanation:AES offers the greatest cryptographic strength and the best performance. 5. 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
Explanation:Authentication is based on the assumption that the attacker won’t be able to get root privileges. 6. In order to turn on RPC authentication in hadoop, set the value of hadoop.security.authentication property to :