| A | B |
| Address | "Data structure or logical convention used to identify a unique entity |
| Broadcast address | "Special address reserved for sending a message to all stations. Generally |
| Internet service providers (ISPs) | "Companies that offer services that tie together multiple network segments." |
| IP (Internet Protocol) | "Network layer protocol in the TCP/IP stack offering a connectionless internetwork service. IP provides features for addressing |
| Router | "Network layer device that uses one or more metrics to determine the optimal path along which network traffic should be forwarded." |
| Segment | "1) Section of a network that is bounded by bridges |
| Subnet mask | "A 32-bit address mask used in IP to indicate the bits of an IP address that are being used for the subnet address." |
| Subnetwork | "In IP networks |
| Subnetworks | "Networks arbitrarily segmented by a network administrator to provide a multilevel |