What is the default failover option for WAN links in SonicWall?

The correct answer is Basic Failover. In SonicWall's configuration for WAN links, Basic Failover is the default option that allows the device to switch to a secondary WAN connection if the primary connection becomes unavailable. This serves as a straightforward method to ensure continuous internet connectivity by allowing the SonicWall appliance to detect the failure of the active WAN link and seamlessly transition traffic to the backup link, minimizing disruption.

In contrast, other options like Active-Active Failover and Load Balancing may involve more complex configurations and are designed for different scenarios, such as optimizing bandwidth usage or maintaining multiple active connections. Dynamic Failover typically implies a more sophisticated method of link monitoring and management, which is not the default setting. Therefore, Basic Failover is selected as the simplest and most efficient way to maintain connectivity during link outages.