What does the Fast Connection Failover feature of Active GridLink for RAC provide?（）
- 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