| A | B |
| NIC | Network Interface Card: control access to the media |
| Physical Topologies | Ring, Mesh, Star, Extended Star, Bus, Hierarchial |
| Token-Passing Logical Toplogy | controls network access by passing an electronic token sequentially to each host |
| Broadcast Logical Topology | each host sends its data to all other hosts on the network medium |
| Repeater | regenerates and retimes network signals |
| Hubs | multi-port repeater |
| Media | cable, CAT 5 UTP, fiber optic, Coaxial cable |
| Switch | multi-port bridge |
| Router | examines incoming packets, chooses the best path for them through the network, and then switches them to the proper outgoing port |
| Bridge | connects 2 LAN segments: filters traffic on a LAN, keeps local traffic local, yet allows connectivity to other parts of the LAN for traffic that has been directed there |
| Cloud | represents a large group of details that are not pertinent to a situation, or description, at a given time |