Topic 3 - Networks

Topic 3 - Networks

3.1 Networks

Network fundamentals

• 3.1.1 Identify different types of networks.

• 3.1.2 Outline the importance of standards in the construction of networks.

• 3.1.3 Describe how communication over networks is broken down into different layers.

• 3.1.4 Identify the technologies required to provide a VPN.

• 3.1.5 Evaluate the use of a VPN.

Data transmission

• 3.1.6 Define the terms: protocol, data packet.

• 3.1.7 Explain why protocols are necessary.

• 3.1.8 Explain why the speed of data transmission across a network can vary.

• 3.1.9 Explain why compression of data is often necessary when transmitting across a network.

• 3.1.10 Outline the characteristics of different transmission media.

• 3.1.11 Explain how data is transmitted by packet switching.

Wireless networking

• 3.1.12 Outline the advantages and disadvantages of wireless networks.

• 3.1.13 Describe the hardware and software components of a wireless network.

• 3.1.14 Describe the characteristics of wireless networks.

• 3.1.15 Describe the different methods of network security.

• 3.1.16 Evaluate the advantages and disadvantages of each method of network security.