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Chapter Objectives
After reading this chapter and completing the exercises, you will be able to do the following:
• Identify the top threats to a network: security breaches, denial of service attacks, and malware
• Assess the likelihood of an attack on your network
• Define key terms such as cracker, sneaker, firewall, and authentication
• Compare and contrast perimeter and layered approaches to network security
• Use online resources to secure your network