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Questions and Answers
What is the purpose of the REVOKE command in SQL Access Controls?
What is the purpose of the REVOKE command in SQL Access Controls?
- To create access rights
- To modify access rights
- To grant access rights
- To revoke access rights (correct)
What is the purpose of Cascading Authorizations?
What is the purpose of Cascading Authorizations?
- To restrict access rights
- To grant access rights to specific users
- To allow access rights to cascade through users (correct)
- To revoke access rights from specific users
What is the advantage of Role-Based Access Control (RBAC)?
What is the advantage of Role-Based Access Control (RBAC)?
- It eases administrative burden and improves security (correct)
- It simplifies database design
- It improves database performance
- It allows for easier data migration
What capabilities does RBAC need to provide?
What capabilities does RBAC need to provide?
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What are the three categories of database users?
What are the three categories of database users?
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What is Inference in database security?
What is Inference in database security?
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How can Inference detection be done?
How can Inference detection be done?
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Study Notes
- SQL Access Controls include the REVOKE command to revoke access rights.
- Cascading Authorizations allow access rights to cascade through users.
- Role-Based Access Control (RBAC) eases administrative burden and improves security.
- RBAC needs to provide capabilities for creating/deleting roles, defining permissions, and assigning/canceling user roles.
- Categories of database users include Application owner, End user, and Administrator.
- Inference is the process of deducing unauthorized information from authorized queries.
- Inference techniques include analyzing functional dependencies and merging views with the same constraints.
- Inference detection can be done by altering the database structure or by detecting violations during queries.
- Database encryption is the last line of defense in database security.
- Disadvantages of encryption include key management and inflexibility.
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