This behavior offers options you can use to optimize delivery to requesting Clients.
You can use this to select a location that is geographically closest to the Clients accessing content via this property configuration, to optimize the delivery. (This is one aspect of what we consider optimization via "Use Case-based" provisioning.)
Client Characteristics and Mixed Mode Configuration
This is a "use case-based" behavior that's automatically included in the Default Rule and used to optimize delivery. You need to apply settings for this behavior in the Default Rule. However, with Mixed Mode Configuration for AMD (MMC), you can also include it in another rule and apply different match criteria to have separate requests use different client characteristics optimizations. For more details, see Mixed Mode Configuration for AMD.