1. What is the default permission for a newly created database object in Amazon Redshift?
By default, only the superuser or the owner of an object can query, modify, or grant permissions on the object.
2. How are permissions granted to Amazon Redshift database users?
Permissions can be granted explicitly by having those permissions assigned directly to the account or implicitly by being a member of a group that is granted permissions.
3. What are the types of objects that different permissions are associated with in Amazon Redshift?
Different permissions are associated with different object types, such as SELECT, INSERT, UPDATE, DELETE, REFERENCES, CREATE, TEMPORARY, and USAGE.
4. How can you control user access to tasks that are normally restricted to superusers in Amazon Redshift?
By using role-based access control (RBAC) to manage database permissions, you can control user access to tasks that are normally restricted to superusers.
5. What is row-level security in Amazon Redshift and how can it be implemented?
Row-level security is a feature that allows you to have granular control over user access to specific rows of data. It can be implemented by creating and attaching policies to roles or users that restrict access to rows defined in the policy.