30.Which two statements are true with respect to the maintenance window? (Choose two.)
对于维护窗口,哪两个陈述是正确的?
A. A DBA canenable or disable an individual task in all maintenance windows.
DBA可以启用或禁用一个单独的任务在所有的维护窗口。
B. A DBAcannot change the duration of the maintenance window after it is created.
C. In caSEOf a long maintenance window,all Automated Maintenance Tasks are restartedevery four
hours.
D. A DBA cancontrol the percentage of the resource allocated to the Automated MaintenanceTasks in each window.
DBA可以控制资源的比例分配给每个窗口的自动维护任务。
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