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Question:
(a)
(i) Explain what is meant by Discretionary Access Control and Mandatory Access Control.
(ii) What is the difference between the two types of access control?
(iii) Which method would be the most effective to ensure that users do not share files with other users not approved for access?
(b) Outline the three differences between the Liberty Alliance specification and the Microsoft .NET Passport System.
(c) Which of the following options below would be the MOST effective solution for preventing individuals outside the organization from modifying sensitive information on a corporate database. Explain the reasons for choosing one option and for rejecting the other two options.
Option 1: Screened Subnets Option 2 : System access logs Option 3: Role based access controls
(d) (i) Where should the Intrusion Detection System be placed on a network?
(ii) Identify one main weakness of signature based Intrusion Detection Systems.
(iii) Explain what is the main objective of network mapping when conducting a penetration test?
(iv) When is the best time to perform a penetration test?
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