Propose a network topology for various servers and the assumed location for trusted  domains such as the location of your firewalls and Intrusion Detection System (IDS).  2) List down all Security related assumptions about approaches to the design and the  trust.  3) Discuss the proposed authentication and authorisation mechanisms to be used. You  need to justify your design choices. 4) Propose a mechanism to exchange secure email between users. This needs to  consider the key management issue as well.

Principles of Information Security (MindTap Course List)
6th Edition
ISBN:9781337102063
Author:Michael E. Whitman, Herbert J. Mattord
Publisher:Michael E. Whitman, Herbert J. Mattord
Chapter6: Security Technology: Access Controls, Firewalls, And Vpns
Section: Chapter Questions
Problem 3E
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Propose a network topology for various servers and the assumed location for trusted 
domains such as the location of your firewalls and Intrusion Detection System (IDS). 

2) List down all Security related assumptions about approaches to the design and the 
trust. 
3) Discuss the proposed authentication and authorisation mechanisms to be used. You 
need to justify your design choices.

4) Propose a mechanism to exchange secure email between users. This needs to 
consider the key management issue as well.

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8) Explain how you would measure the Return On Investment (ROI) on security for your 
system. You should give examples for both tangible and intangible assets

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