Which four are true about duplicating a database using Recovery Manager (RMAN)? (Choose four.) 

Answer options:

A. Duplication can be done by having the auxiliary database instance pull backup sets from the target database instance.
B. A connection to an auxiliary instance is always required.
C. A subset of the target database can be duplicated.
D. A new DBID is always created for the duplicated database.
E. A connection to the recovery catalog instance is always required.
F. A backup of the target database is always required.
G. Duplication can be done by having the target database instance push copies to the auxiliary database instance.
H. A connection to the target database instance is always required.

ABFG