411.Which is true concerning Database Replay in an Oracle Real Application Cluster (RAC) database?
A. Workload capture is per instance.
B. You only need to restart one instance to begin workload capture.
C. Specifically in RAC, you shut down all instances, restart them individually, and begin workload capture with the last instance started.
D. RAC does not support workload capture, but it does support workload replay.
E. None of the above.
Answer: E

关于一个真正应用集群（RAC）数据库的数据库重放，哪个是真的？
A、工作负载捕获是每个实例。
B、你只需要重新启动一个实例去开始工作量捕获。
C、具体到RAC，你关闭所有实例，逐一重新启动，并对最后一个开始的实例进行工作量捕获。
D、RAC不支持工作量捕获，但它支持工作量重放。
E、以上都不是。

Option A is incorrect because workload capture is for the database, not for individual instances. B is incorrect because the correct procedure is to shut down all instances before you begin workload capture. Option C is incorrect; after the shutdown of all instances, start one instance to begin workload capture, and then start the remaining instances after capture begins. Workload capture and replay are supported in RAC, so D is incorrect.
选项A是不正确的，因为工作量捕获的数据库，而不是为个别实例
B是不正确的，因为正确的步骤是关闭所有实例，然后再开始工作量捕获
选项C是不正确的;所有情况下关机后，启动一个实例开始工作量捕获，然后开始捕获后，启动其余的实例。
工作量捕获和重放，支持RAC，所以D是不正确的。