 When one device sends data, the device on the other hand only receives data.  It is slow in data transmission.  Delay in data transmission.  Full-Duplex Mode In full-duplex mode, both stations can transmit and receive simultaneously. In full-duplex mode, signals going in one direction share the capacity of the link with signals going in another direction, this sharing can occur in two ways:  Either the link must contain two physically separate transmission paths, one for sending