单项选择题 A Cluster Administrator is implementing a custom resource group for a new web application. The  goal is to ensure the resource group is always active. Preference should be given to the priority node at startup time，but fallback to the priority node should be scheduled during a nonbusy time.  Using custom resource group options， what combination best achieve the desired resource group behavior？（）

单项选择题 WhenaproblemoccursinanHACMPcluster，whichlogfilewillshowthehighleveloverviewoftheclusteroperation？（）

单项选择题 An administrator is reviewing the /tmp/hacmp.out after an unsuccessful fallover and notice that  the event stop_server PROD_DB failed.  Besides manually intervening，what step must be performed to return the cluster to a stable state？（）