Question 210
At Oakridge Public Services, the citizen data administration team maintains a municipal case-management and application database platform with requirements for reproducible configuration and controlled access. The acceptance review requires independent evidence for: A database stores customer payment tokens in reversible plaintext even though only a small service needs to decrypt selected fields. Which observed result BEST proves the intended problem is corrected?
Explanation
Correct Answer
Only the approved service returns plaintext from the test column and unauthorized SQL readers cannot recover its sensitive values. That observable result supports resolution of: A database stores customer payment tokens in reversible plaintext even though only a small service needs to decrypt selected fields. The corresponding corrective change is: Use a suitably governed column or application encryption design with key management and limited decrypt permissions. The Oakridge Public Services reviewer can distinguish demonstrated database behavior from an untested change claim.
Incorrect Answers
A supported query performs the approved confidential operation with enclave attestation while plaintext keys remain outside ordinary engine access. That result is evidence for another corrective change: Evaluate Always Encrypted with secure enclaves and the required hardware, driver and database feature support for the intended computations. The alternative problem is: An application requires supported computations on encrypted database columns but is deployed with Always Encrypted columns without enclave capability. The current Oakridge Public Services issue is instead: A database stores customer payment tokens in reversible plaintext even though only a small service needs to decrypt selected fields. Its decisive acceptance evidence would be: Only the approved service returns plaintext from the test column and unauthorized SQL readers cannot recover its sensitive values.
The approved client reaches the database and a separate outside-IP test is rejected by the Azure SQL network access policy. That result is evidence for another corrective change: Replace broad access with the narrow approved client range or private connectivity and remove expired rules after testing. The alternative problem is: A team allows the Azure SQL server-wide firewall rule for every address just to support one temporary developer laptop. The current Oakridge Public Services issue is instead: A database stores customer payment tokens in reversible plaintext even though only a small service needs to decrypt selected fields. Its decisive acceptance evidence would be: Only the approved service returns plaintext from the test column and unauthorized SQL readers cannot recover its sensitive values.
An authorized application decrypts a test value while a database administrator query sees ciphertext rather than plaintext. That result is evidence for another corrective change: Use Always Encrypted for suitable columns with keys managed outside the database engine and supported client-side encryption. The alternative problem is: A team wants an administrator who can run queries to be unable to see highly sensitive column values, but proposes only transparent data encryption. The current Oakridge Public Services issue is instead: A database stores customer payment tokens in reversible plaintext even though only a small service needs to decrypt selected fields. Its decisive acceptance evidence would be: Only the approved service returns plaintext from the test column and unauthorized SQL readers cannot recover its sensitive values.