What are the features provided by layering?

What are the features provided by layering?
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2 Answers

Answer :

∙ It decomposes the problem of building a network into more manageable components.  ∙ It provides more modular design.  
∙ To add new service, modify the functionality at one layer.
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Answer :

In networking, layering means breaking up the sending of messages into separate components and activities. Each component handles a different part of the communication. This can be referred to as the Transmission Control Protocol/Internet Protocol (TCP/IP) model.
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