CHAPTER 17 NETWORK MANAGEMENT 17-1 OBJECTIVES Explain why it is necessary Discuss management's responsibility Describe key elements of a network security policy; ist the types of security threats Explain purpose, pros, and cons of encryption www.gxmu.edu.cn17-1 OBJECTIVES Explain why it is necessary； Discuss management's responsibility; Describe key elements of a network security policy; List the types of security threats; Explain purpose, pros, and cons of encryption; www.gxmu.edu.cn CHAPTER 17 NETWORK MANAGEMENT