Transmitting and Recieving

Transmitting and Recieving

1. Transmission media

   • Wired Transmision
   • Wireless Transmission

2. Characteristics of media

   • Speed
   • Cost
   • Capacity
   • Security

3. Communication protocols

   • Application level protocols eg. http, smtp and SSL
   • Communication control & addressing level protocols eg. TCP and IP
   • Transmission level protocols, eg. Ethernet & Token ring

4. Network Topologies

   • Star
   • Bus
   • Ring
   • Hybrid
   • Wireless networks

5. Strategies for error detection and error connection

6. Functions performed by hardware

   • Hubs and switches
   • Routers
   • Modems
   • Bridges & gateways
   • Mobile Phones
   • Network interface cards (NIC)
   • Mobile Phones
   • Cable
   • Wireless access points
   • Bluetooth devices

7. Characteristics of network operating software

8. Similarities & differences between the internet, intranets and extranets