1.4 Networks (2)

1.4 Networks (2)

1. Packets

   • Data that's been broken down into packets
   • Each packet has the address of receiver
   • Have an certain amount of time before disappearing
   • Has their on sequence number so they arrive in a specif order

2. WAP- Wireless Access Point

   • Allows devices to connect to WiFi wireless
   • WiFi or Bluetooth
   • Allow internet access at public places

3. Router

   • interconnection device to connect devices to networks
   • Contains routiong table for IP addresses and common used packet routes
   • Allow packets from different network types to be shared

4. Switch

   • When packets are sent from different destinations it causes collisions
   • When packets arrive the switch creates a direct connection to the device
   • Interconnection that connects two or more devices together

5. NIC-Network Interface Card

   • Allow computers to connect to a wired network
   • Packets travel to and from the computer
   • Contains a MAC address
   • Connected through Ethernet cables

6. Transmission media

   • Ethernet
     • A networking standard
   • Fibre Optic
     • Fast cable(uses light) but more expensive