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GCSE Computer Science · key term
A division of network functionality that handles a specific part of the communication task.
Used by OCR
Paper 1
Revise: Network LayersRather than designing one enormous system to handle everything, network functionality is divided into layers. Each layer handles a specific part of the overall communication task. Together, the layers provide the functions needed to transfer data.
When explaining a benefit, link the feature to its consequence: self-contained layers let developers update one part without redesigning the whole system.
For OCR J277, you need to understand layers and their benefits, not memorise the names or functions of the four TCP/IP layers.
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