RUCKUS One licensing requires consideration of the subscription tier and separate switch support requirements. RUCKUS One uses tiered subscriptions, such as Essentials and Professional, with the selected tier determining which management, analytics, assurance, and other advanced capabilities are available. In addition, RUCKUS One device subscriptions do not inherently include Remote Technical Support (RMT) for managed ICX switches. RUCKUS licensing documentation states that switch RMT support must be purchased separately. Consequently, administrators must determine both the RUCKUS One subscription tier appropriate for the required features and whether the managed switches have the necessary support entitlement. AP or switch hardware warranty status is a different lifecycle/support consideration and is not the pair being tested by this licensing question. Therefore, options C and D are correct.