03.04 Networking Protocols

For a computer to send or receive information on a network, it needs a network address. You can think of a network address in much the same way as a mailing address. A mailing address needs to include a city, street number, and house number. Network addresses work similarly in that they are composed of different parts. Each part lets other devices know where information goes. Network addresses, like mailing addresses, need to be unique. No two devices on the same network can have the same network address. The following table compares two types of networking addresses: the physical address and the logical address.