正解:D
Discovery request. Wireless questions depend on AP mode, WLAN security, RF band selection, controller interfaces, and client roaming or authentication behavior. Cisco CCNA 200-301 v1.1 includes this under Network Access, where the expected skill is selecting the feature that actually produces the requested network behavior. The wording normally gives the clue: protocol family, address scope, trunk state, route preference, security mode, API method, or controller role. Wrong options confuse encryption with authentication, local switching with tunneling, or controller management with client data handling. In production, choosing the wrong option would typically cause failed client access, a broken route, insecure management, or an automation workflow that targets the wrong interface. The selected answer is the Cisco-consistent behavior for this item.