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In the earlier section of this chapter, we learned about the prerequisites for installing a failover cluster. Now that we are aware of them, let's get started by installing Single instance, that is, an Active/Passive cluster.
Let me explain the most important aspect here. The term Active/Passive is used here because this configuration is a two-node and Single-instance Failover Cluster. We should actually practice calling it a Single-instance Failover Cluster instead of calling it an Active/Passive failover.