单项选择题

What RMAN command must you use before you can back up a database using the recovery catalog？（）

A. create catalog
B. install database
C. catalog database
D. merge Catalog with database
E. register database

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单项选择题

A. True
B. False

单项选择题

A. Virtual private database
B. Virtual private catalog
C. RMAN virtual database
D. RMAN secure catalog
E. Oracle Database Vault

多项选择题

A. Make backups faster
B. Store RMAN metadata
C. Store RMAN scripts
D. Provide the ability to do centralized backup reporting
E. Make recovery faster