What happens if the master role is set for a device in the HA cluster?

When the master role is set for a device in a High Availability (HA) cluster, it designates that device as the primary or master unit responsible for managing and controlling the cluster. This configuration means that upon establishing the HA cluster, the device designated as master will take control of the network traffic, monitor the health of the other devices, and manage configuration settings for the entire cluster.

Setting a device as the master ensures that it will become the primary unit if it is the first to be configured, allowing it to handle the load and make decisions about failover processes. In addition, if the master device were to fail, the remaining devices in the cluster can seamlessly failover to a backup unit, which would take over management responsibilities.

The other options suggest different behaviors that aren't aligned with the proper function of a master device in an HA cluster. For instance, indicating a device always acts as a backup would contradict the very nature of being assigned the master role. Similarly, suggesting that the master role cannot change does not reflect the flexible capabilities of HA configurations, where roles can be reassigned. Lastly, the notion that a master device loses sync with the cluster is inaccurate, as maintaining synchronization is crucial for the operation of all devices within the HA setup.