What is a primary feature of SSO?

The primary feature of SSO, which stands for Stateful Switchover, is to maintain data through high availability. In network environments, high availability is crucial to ensure that services remain uninterrupted, even in the event of a failure. SSO achieves this by allowing for the seamless transition of active sessions from a primary device to a standby device without loss of session state or data. This means that if the primary device fails, the standby device can take over immediately, ensuring that ongoing processes continue without disruption.

This capability is especially important in environments that require constant uptime, such as data centers or critical business applications. By maintaining session states and protecting data during failover, SSO enhances the reliability and stability of network services. Other features like providing backup power, ensuring secure communication, or distributing network traffic, while important in their own contexts, do not directly relate to the core functionality of SSO aimed at maintaining service availability and data integrity during transitions.