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CMP5319 System Security Attacks and Defences A S2 2025/6

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The permission bits associated with a program called ToolZ and a dataset called Config are as follows:

ToolZ: 1 1 0 0 1 1 1 0 1

Config: 1 0 0 1 0 0 0 0 0

Question: State the permissions these bits give.

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Explain how Multi-Factor Authentication can reduce the success of phishing attacks.

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Describe how ACLs are used in access control and discuss access control models with examples.

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Which authentication factor is based on behaviour?

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Which attack is most associated with weak or reused passwords?

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What is the main purpose of authorization?

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Which model is more secure than DAC because entities cannot freely grant access to others?

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 In access control, what is an object?

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Which is the best example of authentication?

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Explain the role of authentication in a login system, and provide an example to support your answer.

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