Which is not true about point-to-point circuits? point-to-point circuits are dedicated to the use of the two computers. point-to-point circuits are more expensive than multipoint circuits. point-to-point circuits are called dedicated circuits. point-to-point circuits reduce the amount of cable required and use the circuit more efficiently than multipoint circuits. point-to-point circuits are used when the computers generate enough traffic to fill the capacity of the communication circuit.