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Question 1[4 Marks]
Explain how the OSI model helps with abstraction.
Question 2[3 Marks]
Explain how the use of media access control (MAC) addresses can improve security.
Question 3[10 Marks]
A bank has designed a new online banking service where their customer’s banking can be managed across the internet.
Define the term 'data packet'
Explain why protocols are necessary with the use of one example
The bank advises that customers do not use the online banking service on public Wifi.
State three necessary components to create a public wireless network
Outline what may occur if a user tries to access their online banking on public Wifi

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