Oracle OCP 1Z0 053 Q21(RMAN Duplicate)

21.You are managing an Oracle Database 11g instance. You want to create a duplicate database for
testing purpose.
What are the prerequisites for performing the active database duplication? (Choose all that apply.)
A. The source database backup must be copied over the net for test database.
B. The source database must be run in ARCHIVELOG mode if the database is open.
C. The source database must be shut down cleanly if the database is in mounted state.
D. A net service name should be set up and a listener configured with the target as well as the source
database.
Answer: BCD

Step 2: Mount or Open the Source Database

Before beginning RMAN duplication, mount or open the source database it if it is not already mounted or open. If the source database is open, then archiving must be enabled. If the source database is not open, and if it is not a standby database, then it must have been shut down consistently.

當源端資料庫關閉時，且它不是一個stand by資料庫，那麼它一定要一致性關閉。如果是OPEN的，就必須是歸檔模式

官方：http://docs.oracle.com/cd/B28359_01/backup.111/b28270/rcmdupdb.htm#BRADV89937

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