You administer a six-instance, policy-managed, multitenant RAC database CDB1 with three PDBs: PDB_1,PDB_2, and PDB_3.
Server pool prod_pool has a cardinality of three and all six hosts of the cluster are up.
Examine these commands executed on HOST01:
Which two statements are true regarding the AR service? (Choose two.)
In the given context, the AR service is defined to run as a singleton within the server pool prod_pool, which means it can run on only one available instance in that server pool at any one time. This makes option E correct as it explicitly states this behavior. Additionally, option C is correct because if the service fails on the current instance, it can fail over to any other available instance within the prod_pool.
A - true - AR can fail over to any instance (all the instances are in prod_pool) B - false - AR is singleton service - it can run only on one instance C - true (all the CDB1 instances run in the prod_pool) D - false - we do not know if cdb1 instance is running on host01 now E - false - AR is singleton service - it can run only on one instance at the time
CE ; E...one (any) instance from the pool in one time. A...all the instances are not in the prod_pool ( just 3 of them)