Câu 8: TDVAN5: Teradata Vantage Administration

A middle-tier application server logs on to the database as TrustedUser and submits requests on behalf of application end users. The server is shared by Finance and Human Resources groups and uses ProxyUser query band to identify end users to the database. Each group needs access to its own sensitive data, so the Administrator has created two separate roles with the appropriate permissions. What is the best way to control access to each group's sensitive data?

1. A. Define the roles as external and use the ProxyRole query band to specify one role.
2. B. Grant both roles to TrustedUser, and add the ProxyRole query band to specify one role.
3. C. Specify the appropriate role for each end user in a GRANT CONNECT THROUGH statement.
4. D. Include both roles in the GRANT CONNECT THROUGH statement, and use ProxyRole in the query band to select the appropriate role. — đáp án hiện tại