| A | B |
| NIC | Network interface card |
| Ring | Circular shaped network |
| Extended star | star with increased size and length |
| Hub | Allows up to 16 connections at once |
| Switch | concentrates connectivity |
| Mesh | used when there should be no break in communication |
| Bus | network with a single backbone |
| Media | Wires,etc.,etc.... |
| Router | examines incoming packets |
| Star | All networks lead to a center station |
| Hierarchical | Flow chart type network |
| Repeater | regenerates network signals |
| Bridge | connects two segments at a time |