Which three events occur when a hub node fails in an Oracle Clusterware 12c Flex Cluster?
A.
The hub node is evicted from the cluster
B.
Leaf nodes connected to the failing hub node are reconnected to a surviving hub node without service
disruption.
C.
Cluster resources running on leaf nodes connected to the failed hub node are relocated to one or more
surviving hub nodes.
D.
Cluster resources running on leaf nodes connected to the failed hub node are relocated to one or more
surviving leaf nodes.
E.
Cluster resources running on the failed hub node are relocated to one or more surviving hub nodes.
F.
Cluster resources running on the failed hub node are relocated to one or more surviving leaf nodes.
G.
Cluster resources running on the failed hub node are relocated to one or more surviving hub nodes or leaf
nodes, or both.
Explanation:
Incorrect Answers:
F, G: Leaf Nodes are different from standard Oracle Grid Infrastructure nodes, in that they do not require direct
access to shared storage, but instead request data through Hub Nodes. Hub Nodes can run in an Oracle Flex
Cluster configuration without having any Leaf Nodes as cluster member nodes, but Leaf Nodes must be
members of a cluster that includes at least one Hub Node.
https://docs.oracle.com/database/121/CWADD/bigcluster.htm#CWADD92409
A,D,E