There are basically 2 types of transmission technologies1.Broadband :In this type .Every host sends the packet/message to all the host.the message has a source address and a destination address. destination address helps the host to identify whether the message is indeed for them or somebody elsethe source address allows them to identify from whom the message has come.2.Point to Point :In this type of technology there are multiple connections (transmission lines) between 2 hosts. so the the packet can take different routes if a particular route is congested.