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OSI Model

OSI Model

Author: david utsey

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Describe the open systems interconnection (OSI) model and how it relates to a network in 200 to 350 words. Include answers to the following:
On which layers of the OSI model do WAN protocols operate?
What are some of these protocols?
On which OSI layers do switches and routers operate?
If routers reside at more than one layer, what is the difference between OSI layers?

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