Choose two.
In which two situations can you use threshold server-generated alerts to help diagnose and fix problems?
A) when free space in a dictionary managed tablespace falls below a specified percentage
B) when a database instance is shut down for a period greater than a threshold value
C) when free space in a locally managed tablespace falls below a specified percentage
D) when the number of logons per second exceeds a specific value
E) when a database instance has been running for a period greater than a threshold value
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