Notes about network in general and for unit 002 City and Guilds

I have created a short notes for my exam and it was about networks.
Contents include:

• OSI model
• Network Topologies
• Different types of network cables and connectors
• Different types of wireless connection
• Different network devices
• 5-4-3 rule
• Advantages and disadvantages of different types of network
• About CSMA/CD and CSMA/CA
• and more.....

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