---

You have enabled backup optimization in RMAN. You issue the following RMAN command to configure a redundancy-based retention policy: CONFIGURE RETENTION POLICY TO REDUNDANCY 3; Which statement is true?（）
A:The command fails because you cannot configure a redundancy-based retention policy when backup optimization is enabled
B:Backup optimization is performed, but RMAN considers the redundancy-based retention policy when it determines which datafiles should be backed up
C:Backup optimization is permanently disabled
D:Backup optimization is temporarily disabled because a redundancy-based retention policy is specified

---

出自：Oracle认证

显示答案