Published on January 26, 2016
FOR MORE CLASSES VISIT www.ntc249tutors.com 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?