A cookie cutter machine requires 2 standard controllers and a safety controller. All of these controllers and machine level I/O have been placed on VLAN 104. The safety controller must monitor an emergency stop connected to an I/O adapter on an adjacent machine (VLAN 105). Which packet type will be used?
A. UDP Multicast TTL = 1
B. UDP Multicast TTL = 2
C. UDP Unicast
D. TCP Unicast
