Understanding Permissions in Database Management
Managing User Permissions in a Database
When it comes to database management, granting and denying permissions to users is a crucial aspect of maintaining data security and access control. Understanding how these permissions work can help ensure that sensitive information is protected and only accessible to authorized individuals.
Grant and Deny Commands
In database management, the grant command is used to give specific permissions to users or groups, allowing them to perform certain actions on the database. Conversely, the deny command is used to explicitly revoke permissions and restrict access to certain resources.
Scenario: Oscar's User Account Permissions
In a scenario where Oscar's user account has been granted permissions to view a database, Nathan decides to use the deny command to revoke Oscar's access. Nathan applies the deny command to a group to which Oscar belongs, leading to a conflict in permissions.
Which Statement is True?
Which of the following statements accurately describes the outcome of applying the deny command to Oscar's permissions?
Question:
Oscar's user account has been granted permissions to view a database. Nathan then uses the deny command in an attempt to deny Oscar the ability to view the database and applies it to a group to which Oscar belongs. Which of the following statements is true?
A. Oscar will still be able to view the database because a grant overrides a deny.
B. Oscar will no longer be able to view the database because a deny overrides a grant.
C. Oscar will no longer be able to view the database, because the deny cancels the grant, giving Oscar no specific permissions.
D. Oscar will still be able to view the database because granted permissions must be removed with the revoke command.
Final Answer:
Oscar will no longer be able to view the database because a deny overrides a grant.
Explanation:
The statement that is true in this scenario is B. Oscar will no longer be able to view the database because a deny overrides a grant. When permissions are granted and denied to a user, the deny command takes precedence over the grant command. In this case, Nathan used the deny command to prevent Oscar from viewing the database, and since Oscar belongs to the group to which the deny command was applied, Oscar's ability to view the database is revoked.
Therefore, option B is the correct answer as the deny overrides the grant.