P2 Comic strip

P2 Comic strip
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Storyboard Description

P2 comic strip unit 9

Storyboard Text

  • There are 4 layers in the TCP/IP Model. TCP/ IP determines how computers are able to communicate with each other over the Internet. 
  • What is TCP/ IP?
  • Layer 1 is called the "physical" layer and this is used to send and receive signals incoming from hardware cables. This includes Ethernet, NIC hubs, Fibre optic cables.
  • Please explain in more detail about the TCP IP model?
  • The network layer receives the data-packets from the physical layer and uses MAC and LLC to validate the packets and to locate the data packets destination using the media access control. The IP address is used to find the computer destination. The network layers use the logical address in order to deliver the data packets to their correct network. 
  • What is the role of the Network layer?
  • What about the transportation layer?
  • The transport layer transfers the data packet to its destination. If the data packet is not sent then it sends it again to the designated computer. 
  • The application layer is where the user and application communicates. For example, a user may request web pages on the Internet by using the HTTP protocol to the web server.
  • What is the last layer of the TCP IP model?
  • Please can you explain to me more about Bluetooth technology? 
  • Describe the factors that affect the range and speed of wireless  technology.
  • Sure. Bluetooth is a short-range wireless technology and is used to communicate between 2 or more devices. When Bluetooth is enabled on both devices there is no further user actions required and it connects automatically.
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