What completes the functionality of NSX-T's load balancing capabilities?

The option that completes the functionality of NSX-T's load balancing capabilities is indeed centered around utilizing Layer 4 and Layer 7 techniques. In the context of networking, Layer 4 functionality refers to operating at the transport layer, managing data traffic between hosts based on protocols like TCP and UDP. This is essential for ensuring efficient traffic distribution among servers.

Layer 7, or the application layer, provides advanced routing capabilities based on the content of the messages, such as HTTP headers, cookies, or URL paths. This enables the load balancer to make more intelligent decisions about which server should handle a request, based on application-specific characteristics. By integrating both Layer 4 and Layer 7 load balancing techniques, NSX-T is able to offer not only basic traffic distribution but also enhanced session persistence, application health checks, SSL termination, and other advanced features that improve the overall performance and reliability of application delivery.

This combination of layers is crucial for effectively managing traffic flows in modern, cloud-native applications where various protocols and services are in use.