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CompTIA cable/Medium
CompTIA Cable & Medium Types
| Question | Answer |
|---|---|
| CAT3 | 10Mbps; 100 Meters |
| CAT4 | 16Mbps; 100 Meters |
| CAT5 | 100Mbps; 100 Meters |
| CAT5e | 1000Mbps (1Gbps); 100 Meters |
| CAT6 | 1000Mbps (1Gbps); 100 Meters |
| USB 2.0 | Max 480 Mbps; 5 Feet |
| USB 3.0 | Max 5 Gbps; 3 Meters |
| STP | Shielded Twisted Pair (Protects against EMI) |
| UTP | Unshielded Twisted Pair (Susceptible to EMI) |
| PoE | Power over Ethernet; Provides power to a network device using a twisted pair/Ethernet cable. |
| F-Type | Used with Coaxial Cabling. |
| RJ45 | Used with Category 3+ cabling |
| RJ11 | Used for phone cabling |
| Plenum-rated cables | Fire Retardant cabling, used in walls and ceilings. |
| Straight-through Cable | Connects unlike devices. Example: Router->Hub or Switch->Router |
| Crossover Cable | Connects like devices. Example: Router->Router or Router->PC |
| 802.11a | 5GHz; 54Mbps |
| 802.11b | 2.4GHz; 11Mbps |
| 802.11g | 2.4GHz; 54Mbps |
| 802.11n | 5GHz or 2.4GHz; 600 Mbps |