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Oracle9i offers the ability to monitor the dynamic use of the SGA through the DB_CACHE_ADVICE parameter. When this parameter is set to READY， what is its effect？ （）
A:The Advisory is on and will capture both CPU and memory overhead.
B:The Advisory is on but the memory for the Advisory is not allocated.
C:The Advisory is off and the memory for the Advisory is not allocated.
D:The Advisory is off but the memory for the Advisory remains allocated.

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出自：Oracle认证

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