Continues From Last Post . . . So each machine has unique identification to send and receive data and avoid the confusion. This doesn’t happen with dial-up modems; because it is assumed that any data you send to the modem is destined for the other side of the phone line.
A wire-tap device that plugs into computer networks and eavesdrops on the network traffic is known as the Packet Sniffer or protocol analyzer. Same as we tap any phone call this sniffing allows us to listen to communication between two or more computers. Computer conversations consist of apparently random binary