Question: 21. Please briefly describe what authentication, authorization and audit are. 22. What is the main difference between DAC and MAC? 23. Please briefly introduce four

21. Please briefly describe what authentication, authorization and audit are. 22.

21. Please briefly describe what authentication, authorization and audit are. 22. What is the main difference between DAC and MAC? 23. Please briefly introduce four RBAC models (i.c.,0,1, 2, 3). 24. Please discuss pros and cons of Attribute-Based Access Control. 25. What is the difference between Access Control List and Capability List? 26 Please briefly introduce what the reflection attacks are

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