Which three statements are true about the operation of a full-duplex Ethernet network, which is being used in the Ezonexam LAN? (Choose three)
A．Ethernet hub ports are preconfigured for full-duplex mode.
B．The host network card and the switch port must be capable of operating in full-duplex mode.
C．There are no collisions in full-duplex mode.
D．In a full-duplex environment, the host network card must check for the availability of the network media before transmitting.
E．A dedicated switch port is required for each full-duplex node.