<{p}>42、Which two are true about backup set compression using RMAN default compression?<{/p}>

发布于 2021-04-23 20:02:53
【多选题】
A Compressed backups cannot have a section size defined
B Unused blocks below the high water mark are backed up
C Binary compression adds CPU overhead to backup operations
D Compressed backups can be written only to media
E Compression can be done only for locally managed tablespaces

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