1. Define and provide a brief discussion of Quality of Service and Service Level Agreements. There is much to be written, but your responses should include particular references to particular users: large business, medium business, personal/small group users 2. Consider the term “Centralized Network Management.” Discuss the Simple Network Management Protocol and tools (SNMP) How and why is it a reasonable entry point for basic network management. Include a commentary on Software-Defined Networking (SDN) and how it can be a benefit to harried systems management personnel. Ch 4, Network Security 3. What are the three most problematic security issues for a medium-sized organization? There are many, involving technical and non-technical need to know, so choose three appropriate to your current knowledge level. 4. Choose two types and approaches to network security and discuss them. They will be related to your response to Question 3 above. Define and describe, including comments on strengths, weaknesses, applications and overall utility.