choose three
Which three are true about RMAN duplexed backup sets or image copies?
A.A backup set may be duplexed with both copies written to disk. B.An image copy on disk can be copied to disk. C.A backup set may be duplexed with both copies written to sbt. D.A backup set may be duplexed so that one copy is written to sbt and the other to disk. E.An image copy on disk can be copied to sbt. F.An image copy on sbt can be copied to disk.正确答案ABC
