| A | B |
|---|
| Media | Material through which data can travel |
| UTP | Unshielded Twisted Pair |
| Cat 5 | Category 5 UTP (10BaseT) |
| Coaxial Thinnet | 10Base2 |
| Coaxial Thicknet | 10Base5 |
| Protocol | set of rules for communication |
| ISO | International Organization for Standardization |
| IETF | Internet Engineering Task Force |
| RFC | Request for Comment |
| DNS | Domain Name System |
| Layering | Ease of development; standardization; interconnection; ease of learning |
| OSI | Open System Interconnect |
| Layer 7 | Application |
| Layer 6 | Presentation |
| Layer 5 | Session |
| Layer 4 | Transport |
| Layer 3 | Network |
| Layer 2 | Data-link |
| Layer 1 | Physical |
| Upper layers | Application, Presentation and Session |
| Lower layers | Transport, Network, Datalink and Physical |
| TCP | Transmission Control Protocol |
| Encapsulation | Data packaging |
| Header | Information added to front of packet |
| Trailer | Information added to end of packet |
| MAC | Media Acces Control |
| CRC | Cyclic Redundancy Check |
| PDU | Protocol Data Unit |
| Three-layer heirarchical networking model | Core layer; Distribution layer; Access Layer |
| DoD (TCP/IP) Model layers | Application; Transport; Internet; Network Access |
| FTP | File Transfer Protocol |
| HTTP | Hypertext Transfer Protocol |
| SMTP | Simple Mail Transfer Protocol |
| TFTP | Trivial File Transfer Protocol |
| UDP | User Datagram Protocol |
| Connection-oriented Protocol | TCP |
| Connectionless Protocol | UDP |
| Transport layer Protocols | TCP & UDP |
| LAN | Local Area Network |
| Topology | Structure of the network |
| Topology definitions | Physical and Logical |
| Common Physical Topologies | star, ring, bus |
| Hosts | devices that connect to a network segment |
| NIC | Network Interface Card |
| Number of bits in MAC address | 48 |
| Where is MAC address | hardcoded onto NIC |
| AUI | Attachment Unit Interface |
| STP | Shielded Twisted Pair |
| Transceiver | transmitter/receiver |
| Layer 1 devices | media, hubs, repeaters |
| Layer 2 devices | switches, NICS, bridges |
| Maximum segment length for 10baseT | 100 meters |
| Maximum segment length for 10base2 | 185 meters |
| Maximum segment length for 10base5 | 500 meters |
| Maximum segment length for Fibre | 2000 meters |
| Repeater | retimes and regenerates signal |
| Hub | multiport repeater; center of star network |
| MAU | Media Access Unit |
| Horizontal Cabling | area extending from wiring closet to workstations |
| Bridge | Segments LAN to separate collision domains |
| Switch | Multiple bridge connections |
| Layer 3 device | Router |
| Router | makes decisions for best path by IP addresses |
| 802.3 | Ethernet |
| 802.5 | Token Ring |
| CSMA/CD | Carrier Sense Multiple Access with Collision Detection |
| CSMA/CA | Carrier Sense Multiple Access with Collision Avoidance |
| Cloud Figure | Suggests another network or perhaps the entire internet |
| Segment | Maximum length of particular media |
| WAN | Wide Area Network |
| Contents of encapsulation | Data, Segments, Packets, Frames, Bits |
