Network Hardware_PK

Network Hardware_PK

1. Network Interface Card

2. Hub

3. Switch

   • Add screenshot of hub vs switch table in here

4. Router

   • Reads the data packet's destination address
   • Looks up all the paths it has available to get to that address
   • Checks on how busy each path is at the moment
   • Sends the packet along the least congested (fastest) path
   • Exchange protocol information across networks
   • Filter traffic - helps prevent unauthorised intrusion by malware

5. Cables

   • Fibre Optic
     • very high bandwidth
     • uses light signals
   • Ethernet cables
     • uses electrical signals
     • lower bandwidth

6. WAP

   • If you want to connect Wi-Fi devices to a wired network, you need a wireless access point (WAP).
   • Wireless technology makes it easy for people to access a network and transmit data without being physically connected i.e. with wires.
   • The WAP has a cable connecting it to the network hub or switch.
   • A WAP is able to pick up Wi-Fi data packets and convert them into data packets for the wired network, and also the other way around.

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