How is technological obsolescence a threat to information security? How can an organization protect against it? What is Port Address Translation (PAT) and how does it work? How is PAT implemented? What is the difference between PAT and Network Address Translation (NAT)? What are IDPSs? List and describe the three control strategies proposed for IDPSs. Compare and contrast pros and cons for each strategy. Describe the three strategic plans for continuous availability. Why are each important to an organization? Describe network foot-printing and network finger-printing. How are they related?