Big Picture

Understand what is meant by an ad hoc network.

Past

Discuss the benefits and drawbacks of ad-hoc networks.

Compare the effectiveness of connection types in different scenarios.

Present

Future

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Although Ad Hoc networks have many benefits there are some issues that users of this network should be aware of.

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There are two main problematic areas you need to have an understanding of:

Ad Hoc Network Issues

• Security concerns.

• Performance issues.

• Open WiFi lacks security, as it does not encrypt the data that is sent. This means hackers can intercept and read this.

Security Issues

• If encryption is used, it is weak so data could still be hacked. Encryption is when we scramble data so it cannot be read.

• Hackers will often use these networks to intercept data being sent. If it is not encrypted they can read it.

Performance is another issue that people can have when using ad-hoc networks.

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Performance Issues

• If too many devices are connected, the data must be shared making load times slower, this is known as low bandwidth.

• The distance from the transmitting device will impact on the performance.

• When using tethering, this can use a lot of data and end up being quite expensive.

More issues

• Prone to viruses and hackers due to lack of security.

• Rural areas might not have coverage or will be slower.

• Less developed countries do not have the infrastructure.

• Demanding tasks such as streaming 4k Netflix movies can slow down network for others.

• Blackspots occur in certain areas, this is when the signal is weak in parts of the building due to distance, height or the material blocking signals.

Main Task

Computer Task:

Develop the leaflet you started last lesson even further. You should add an issues section. Your issues section should include both security issues and performance issues. You should use the key terms:

Complete all the questions on the work sheet.

• Encryption

• Bandwidth

• Distance

• Blackspots

• Infrastructure

• Coverage