Correct Answer: ATo implement dynamic segmentation policies for users connecting via both wireless and Ethernet switch ports in a network consisting of AOS-CX and Aruba gateways, the administrator should implement User-based tunneling (UBT). UBT allows for dynamic segmentation by assigning each user a unique role, ensuring proper policy enforcement regardless of the connection type. Port-based tunneling is not supported on the mentioned AOS-CX version, and switch-to-switch tunneling and local switching do not meet the requirements for dynamic user-based policy enforcement.