3.3.5

Transmission Protocols

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Transmission Protocols

In any network, we need a set of protocols which determine how data will be transmitted and how it will be structured.

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Ethernet

  • Ethernet is a protocol that defines how data should be physically transmitted between network hardware.
  • Ethernet is used in wired networks.
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WiFi

  • WiFi (802.11x) is a set of protocols defining how data should be transmitted using radio waves.
  • WiFi is used in wireless networks.
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Transmission Control Protocol

  • Transmission Control Protocol (TCP) splits data from applications into small pieces called 'packets'.
  • Each packet has a header and a payload.
    • The header is data about how the packet should reach its destination.
    • The payload is the actual data that needs to be sent.
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Internet Protocol

  • Internet Protocol (IP) defines how data packets should be sent between networks.
  • An IP header is added to each packet with the source and destination IP address.
    • Routers use this information to deliver the packet to the correct network.

Jump to other topics

1Components of a Computer

2Software & Software Development

3Exchanging Data

4Data Types, Data Structures & Algorithms

5Legal, Moral, Cultural & Ethical Issues

6Elements of Computational Thinking

6.1Thinking Abstractly

6.2Thinking Ahead

6.3Thinking Procedurally

6.4Thinking Logically

6.5Thinking Concurrently

7Problem Solving & Programming

8Algorithms

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