You can get different types of ethernet cables.
- Coaxial Cable
- Twisted Pair
├── Catgory 3 – Three twists per inch
├── Cat 5 – five twists per inch
├── Cat 5e – 5 twists per square inch; pairs also twisted together
├── Cat 6 – Six twist per inch, with improved insulation
└── RJ45 connector is used to connect the device.
- Fibre Optic
- Routing IP packets
- Quality of Service classification
- Virtual LAN configurations
Data collisions can occur is two devices send at the same time especially if a hub is used.
CSMA/CD protects against this
Carrier Sense Multiple Access with Collision Detection
If data collision occurs senders back off and resend. It uses carrier-sensing to defer transmissions until no other stations are transmitting