Which two statements are true regarding undo management in the RAC environment?
A.
You can dynamically switch undo tablespace assignments by executing the undo
tablespace statement from any instance in a administrator managed database.
B.
You can use Automatic Undo Management (AUM) in some of the instances and manual
undo management in the rest of the instances in a RAC database.
C.
In a policy-managed RAC database, Oracle automatically allocates the undo tablespace
even the Oracle Managed Files (OMF) is disabled in a database.
D.
In a policy-managed RAC database, Oracle automatically allocates the undo tablespace
if the database is OMF enabled.