试题详情
- 单项选择题What is an obsolete backup set？（）
A、 A backup set that is missing one or more backup set pieces
B、 A backup that has exceeded the retention criteria and is no longer needed
C、 A backup set that does not include archived redo logs
D、 A backup set that can not be recovered due to corruption
E、 A backup set superceded by a datafile copy
- B
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