What kind of redundancy might a TSC implement?

A Tactical Session Controller (TSC) implements redundancy to ensure high availability and reliability of communication services. The active-active or active-passive redundancy is particularly effective because it allows for seamless failover between systems. In an active-active configuration, both systems are operational and can handle traffic, providing load balancing and enhanced fault tolerance. If one system fails, the other can immediately take over, minimizing downtime and ensuring continuity of service.

On the other hand, in an active-passive configuration, one system is actively handling the load while the other stands by as a backup. This setup ensures that there is always a ready-to-go backup available, which can take over if the primary system fails.

This form of redundancy is critical in mission-critical environments where downtime can lead to significant impacts. The other types of redundancy mentioned do not provide the same immediate failover capabilities or operational efficiency as active-active or active-passive setups, which is why the latter is the most suitable choice for a TSC.