Networking

A digital network is where two or more nodes are connected together

Pre-course material

Before learning about modern packet switched digital networks, watch Jeremy Clarkson's documentary on the development of the circuit switched telephone network - CLICK HERE

Networking #1 Introduction

#learning

What are digital networks and why do they exist?

Students understand:

  • definitions of a network and the x3 types of network (LAN, MAN and WAN).
  • the x2 network node relationship models (p2p and client server)
  • the advantages and drawbacks of networks
Network performance

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What effects the performance of a network?

Students understand:

  • that network performance can be affected
  • what affects performance
  • how to increase network performance
Network protocols and layers

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How can we send data around the world?

Students understand:

  • what a protocol is and how they are useful
  • how a data packet is sent over a digital switched network
  • what protocols are used to send data packets and the differences between them
  • what the OSI layer model is and why it exists
Protocols lesson

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How can we create a protocol to send a simple message?

Students understand:

  • what a protocol is and how they can send a message between two people
  • how a protocol must be agreed between both sender and receiver to work
  • how to evaluation the effectiveness of ideas and improve upon them
The Internet

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What happens when we request a web page?

Students understand:

  • the protocols used in a web request
  • how a data packet is sent over a digital switched network
  • the journey of what happens when a link is clicked in a web browser
Network threats

#learning

What threats can be found on digital networks?

Students understand:

  • types of network threat that exist
  • types of counter measures
  • network policies and how they can protect a network

Resources

Revision

Other information sources

Quizlet - test your knowledge