Subject -Network securityMandatory answer each and every que

Subject -Network securityMandatory answer each and every question with minimum of 800 words and no plagiarism and all in APA formatplease answer each and every question below What is the OSI security architecture?What is the difference between passive and active security threats?List and briefly define categories of passive and active security threats?List and briefly define categories of security services?List and briefly define categories of security mechanisms.List and briefly define the fundamental security design principles.Explain the difference between an attack surface and an attack tree.NOTE – Very important please no plagiarism and minimum of 4 references and all in APA FORMAT WITH LINKS Please do good online research and answer the above questions Please use and give good examples

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