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You want to create a duplicate database
DUP_DB from your production database PROD on the same host. The PROD
Database uses Automatic Storage Management (ASM) for storage.
Regular backups are taken using RMAN connected to a recovery catalog.
You create an auxiliary instance and want to execute the command:
RMAN> DUPLICATE TARGET DATABASE TO dup_db FROM ACTIVE
DATABASE;
What is a prerequisite for the successful execution of this command
A.RMAN must be connected to the target database instance and the auxiliary正确答案A
Instance. B.A most recent backup set of the PROD database must exist. C.Flashback must be enabled for the PROD database. D.The target database must be in MOUNT state.
