Which four are true about duplicating a database using Recovery Manager (RMAN)? (Choose four.)
Duplication can be done by having the auxiliary database instance pull backup sets from the target database instance.
A connection to an auxiliary instance is always required.
A subset of the target database can be duplicated.
A new DBID is always created for the duplicated database.
A connection to the recovery catalog instance is always required.
A backup of the target database is always required.
Duplication can be done by having the target database instance push copies to the auxiliary database instance.
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