Which three strategies are valid SD-WAN rule strategies for member selection?

The correct strategy involves using a "Manual with load balancing" approach for member selection in an SD-WAN configuration. This strategy allows administrators to set specific member gateways based on their preferences and objectives, while also enabling the load to be distributed evenly across those selected members.

Manual member selection gives precise control to the administrator on which WAN links to utilize based on the network's needs, such as prioritizing certain connections due to their reliability or speed. The load balancing feature ensures that traffic is evenly distributed among the chosen members, enhancing performance and redundancy. This is crucial in SD-WAN scenarios where traffic needs to be optimized in real time across multiple paths.

In contrast, other strategies may not provide the same level of flexibility or control. For instance, the "Lowest Cost (SLA)" strategies focus primarily on selecting paths based on cost-effectiveness or service level agreements, which may not meet specific network traffic requirements. Additionally, "Round Robin" methods, while useful for distributing traffic, lack manual input or controls, potentially leading to less optimal performance under certain conditions.

By selecting the "Manual with load balancing" strategy, organizations can ensure that their SD-WAN operates in alignment with their specific operational priorities and performance goals.