Which two statements about workload capture and replay operations are true？（）  

A

 The clients must be created manually on the test machines to perform more realistic testing.

B

 Restart the database in RESTRICTED mode before beginning workload replay to enable a clean state for workload replay.

C

 Restart the database in RESTRICTED mode before beginning workload capture to enable a clean state for capturing the workload.

D

 The application state of the capture system must be identical to the application state of the replay system when the workload replay begins.

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