Appendix B. Answers to Chapter Review Questions
What are the four types of network security threats?
Answer: The four types of network security threats are unstructured threats, structured threats, external threats, and internal threats.
What are the three main attack types?
Answer: The three main attack types are reconnaissance, access, and denial-of-service.
What is the first line of defense against external attacks?
Answer: The perimeter defenses on your network provide the first line of defense against external attacks.
Why is network security needed?
Answer: The global connectivity of the Internet has enabled hackers to attack your network from anywhere in the world.
Attacks against network resources fall into ...