Oracle Database 12c: RAC Administration — Question 45

Which two are characteristics of leaf nodes in an Oracle Clusterware 12c Flex Cluster? (Choose two.)

Answer options

• A. They can be on a different subnet to the hub nodes.
• B. Grid Naming Service (GNS) must exist on one of the leaf nodes.
• C. They discover hub nodes automatically at startup.
• D. They require direct access to shared storage.
• E. They may discover hub nodes without having the DNS delegation configured by network.
• F. Oracle database 12c RAC instances may not run on leaf nodes.

Correct answer: D, F

Explanation

The correct answers are D and F because leaf nodes in an Oracle Clusterware 12c Flex Cluster indeed require direct access to shared storage to function properly. Additionally, Oracle database 12c RAC instances are not permitted to run on leaf nodes, which is a defining characteristic. The other options are incorrect as they pertain to the functionalities or requirements that do not accurately describe leaf nodes.