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Which two statements are true about variable extent size support for large ASM files?（）
A:The metadata used to track extents in SGA is reduced.
B:Rebalance operations are completed faster than with a fixed extent size
C:An ASM Instance automatically allocates an appropriate extent size.
D:Resync operations are completed faster when a disk comes online after being taken offline.
E:Performance improves in a stretch cluster configuration by reading from a local copy of an extent.

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出自：Oracle认证

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