Identify three scenarios in which RMAN will use backup sets to perform active database
duplication.
A.
when the duplicate … from active database command contains the section size clause
B.
when you perform active database duplication on a database with flashback disabled
C.
when you specify set encryption before the duplicate … from active database command
D.
when the number of auxiliary channels allocated is equal to or greater than the number of
target channels
E.
when you perform active database duplication on a database that has read only table
spaces
ACD see for example John Watson OCP p. 822-3 BE is no reason for a preference between image copy over backup set