Oracle Exam 1Z0-449 Topic 7 Question 3 Discussion

Actual exam question for Oracle's 1Z0-449 exam

Question #: 3
Topic #: 7

You want to set up access control lists on your NameNode in your Big Data Appliance. However, when you try to do so, you get an error stating ''the NameNode disallows creation of ACLs.''

What is the cause of the error?

ADuring the Big Data Appliance setup, Cloudera's ACLSecurity product was not installed.

BAccess control lists are set up on the DataNode and HadoopNode, not the NameNode.

CDuring the Big Data Appliance setup, the Oracle Audit Vault product was not installed.

Ddfs.namenode.acls.enabled must be set to true in the NameNode configuration.

Show Suggested Answer

Suggested Answer: D

To use ACLs, first you'll need to enable ACLs on the NameNode by adding the following configuration property to hdfs-site.xml and restarting the NameNode.

dfs.namenode.acls.enabled

true

References:

https://hortonworks.com/blog/hdfs-acls-fine-grained-permissions-hdfs-files-hadoop/

by Sylvia at May 06, 2022, 03:44 AM

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