1) Many argue that networks are complex and therefore, difficult to defend. However, can abstraction be effectively employed to simplify the design of networks? Explain your answer.

 

2) Consider sequencing attacks. How could one discern a normal sequencing issue (e.g. packets on different routes) vice an "intentional" sequencing attack?

 

4) Consider WiFi Protected Access (WPA) and Wired Equivalent Privacy (WEP) and review the strengths of WPA over WEP. Which of the greater strengths identified by the authors do you believe to provide the greatest contribution to security? Explain your answer.

 

5) Consider the man-in-the-middle attack on WPA. List and number the steps necessary for a successful attack. Also, the authors note that frames lack integrity protection. How specifically would one provide such integrity protection?

 

8)  How could a 'smurf' attack be prevented? What can the node attacked do to depend against a 'smurf' attack?

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