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Which two statements are true about Oracle Weblogic Clustering ？ （）
A: WLS instances must be in a Cluster for In-Memory HTTP Session Replication to function  
B: WLS supports only hardware load balancing to ensure HA access for HTTP/Web clients
C: The servers must be running on the same port number
D: Make sure your Admin Server configuration and related files reside on a HA file system or some other backup/recovery strategy is in place 

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出自：Oracle认证

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