Network Security Week #5 Assignment 1 Perimeter Defenses Paper Research the following topic: Perimeter Defenses What is the OSI model and why is it important in understanding networking? Under what conditions would you choose to subnet a network? What are the major differences between TCP and UDP? Prepare a 350 to 1,050 word paper that fully discusses the topic questions Format your paper consistent with APA guidelines. Format your paper consistent with APA guidelines.