单选题
Ainstant notification of a RAC node failure so applications never have to retry a transaction that was sent to a node that failed during the transaction
Bnear-instant notification of the failure of a RAC node failure that minimizes the possibility connection to a failed node being provided to an application
Capplication level notification of a failed RAC node such that an application can retry a transaction if required
Dfaster failover for Multi Datasources
Eguaranteed transaction high availability when interacting with an Oracle RAC Database
正确答案
答案解析
略
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