Which two statements are true about Resource Manager plans for individual pluggable databases (PDB plans)
in a multitenant container database (CDB)?
A.
If no PDB plan is enabled for a pluggable database, then all sessions for that PDB are treated to an equal
degree of the resource share of that PDB.
B.
In a PDB plan, subplans may be used with up to eight consumer groups.
C.
If a PDB plan is enabled for a pluggable database, then resources are allocated to consumer groups across
all PDBs in the CDB.
D.
If no PDB plan is enabled for a pluggable database, then the PDB share in the CDB plan is dynamicallycalculated.
E.
If a PDB plan is enabled for a pluggable database, then resources are allocated to consumer groups based
on the shares provided to the PDB in the CDB plan and the shares provided to the consumer groups in the
PDB plan.
Explanation:
A: A CDB resource plan determines the amount of resources allocated to each PDB. A PDB resource plan determines how the resources allocated to a specific PDB are allocated to consumer groups within that PDB.
Resource Manager allocates the resources in two steps:
1. It allocates a portion of the system’s resources to each PDB.
2. In a specific PDB, it allocates a portion of system resources obtained in Step 1 to each session connected to the PDB.
E: A PDB resource plan allocates resource among the consumer groups within a PDB.
References: https://docs.oracle.com/database/121/ADMIN/cdb_dbrm.htm
AE