Identify two correct statements about multitenant architectures.

Identify two correct statements about multitenant architectures.

A.
Multitenant architecture can be deployed only in a Real Application Clusters (RAC)
configuration.

B.
Multiple pluggable databases (PDBs) share certain multitenant container database (CDB)
resources.

C.
Multiple CDBs share certain PDB resources.

D.
Multiple non-RAC CDB instances can mount the same PDB as long as they are on the same
server.

E.
Patches are always applied at the CDB level.

F.
A PDB can have a private undo tablespace.

Explanation:
Not A: Oracle Multitenant is a new option for Oracle Database 12c Enterprise
Edition that helps
customers reduce IT costs by simplifying consolidation, provisioning, upgrades, and more.
It is supported by a new architecture that allows a container database to hold many
pluggable databases. And it fully complements other options, including Oracle
Real Application Clusters and Oracle Active Data Guard. An existing database can be
simply adopted, with no change, as a pluggable database; and no changes are needed in
the other tiers of the application.
Not E: New paradigms for rapid patching and upgrades.
The investment of time and effort to patch one multitenant container database results in patching
all of its many pluggable databases. To patch a single pluggable database, you simply unplug/plug
to a multitenant container database at a different Oracle Database software version.
not F:
* Redo and undo go hand in hand, and so the CDB as a whole has a single undo tablespace per
RAC instance.