Write a 3-4 page paper (400 words per page) describing the open systems interconnection (OSI) model and how it relates to a network. Your response should 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 the OSI layers?
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