Circle either T or F in the space before each statement to indicate whether the statement is true or false.F First$-$generation optical networks have routing, switching, and intelligence in the optical layer. F ATM has been designed for high$-$speed transfer of data, voice, video. D F In Circuit Switching Channel capacity is dedicated for the whole duration of a connection. F In Fiber$-$to$-$the$-$curb $($FTTC$)$ the cabling terminates within $300$ yards of a subscriber's premises. Circuit Switching has a long data delay and low initial delay $$ In a packet$-$switched network, there is no resource reservation. In Single$-$mode fiber many pulses of light generated by LED travel at different angles TT$.$ The cell size in ATM network is variable and can be very large. In Datagram packet switching, a preplanned route is established before any packets are sent. T Routing decisions and switching are performed by hardware in ATM switches