Data is split into packets before it is transmitted across a network.

1. (a)The diagram shows a packet with three sections. Complete the diagram by writing the name of each section of the packet. Write an example in each section of what would be stored in that part of the packet. Packet First The first section is called the .................................................................................................................................................................. Example ................................................................................................................................................................................ Second The second section is called the .................................................................................................................................................. Example ................................................................................................................................................................................ Third The third section is called the .................................................................................................................................................... Example ................................................................................................................................................................................[6]
2. (b)(i)Explain how data is transmitted in the two given methods of data transmission. Serial full-duplex[4]
3. (b)(ii)Parallel half-duplex[4]

This question uses a diagram from the original paper, which isn't shown here. Open the full paper from the past papers archive to see it.