| A | B |
|---|
| CSMA/CA | Carrier Sense Multiple Access/ Collision Avoidance |
| CSMA/CD | Carrier Sense Multiple Access/ Collision Detection |
| CSU | Channel Service Unit |
| dB | Decibel |
| DHCP | Dynamic Host Configuration Protocol |
| DLC | Data Link Control |
| DNS | Domain Name Service/ Domain Name Server/ Domain Name System |
| DoS | Denial of Service |
| DDoS | Distributed Denial of Service |
| DSL | Digital Subscriber Line |
| DSU | Data Service Unit |
| E1 | E-Carrier Level 1 |
| EAP | Extensible Authentication Protocol |
| EGP | Exterior Gateway Protocol |
| EIGRP | Enhanced Interior Gateway Routing Protocol |
| EMI | Electromagnetic Interference |
| ESSID | Enhanced Service Set Indentifier |
| ESP | Encapsulated Security Packets |
| FDM | Frequency Division Multiplexing |
| FHSS | Frequency Hopping Spread Spectrum |
