Question 190
A payroll table stores national IDs and developers expect TDE alone to keep plaintext away from privileged DBAs. Which diagnostic evidence should the database administrator check FIRST?
Explanation
Correct Answer
Inspect encrypted column metadata, column master and encryption keys, driver feature support, enclave attestation where applicable and key store permissions. This is the discriminating system or configuration evidence for the case. Always Encrypted is distinct from TDE; queries and operations may be constrained without supported enclave capabilities and drivers. Corresponding approach: Use Always Encrypted to protect selected columns with client-side cryptography and evaluate secure enclaves for supported confidential computations and richer query operations.
Incorrect Answers
Inspect TDE state, Azure Key Vault or Managed HSM key permissions, protector version, key availability, rotation policy and restore dependencies. These checks primarily test Transparent data encryption keys and protector lifecycle instead of the critical system behavior in this case. Examine: Inspect encrypted column metadata, column master and encryption keys, driver feature support, enclave attestation where applicable and key store permissions.
Check effective permission using EXECUTE AS, user/database role membership, ownership chain, DENY overrides, T-SQL GRANT statements and precise failed operation. These checks primarily test Least-privilege SQL roles and ownership chaining instead of the critical system behavior in this case. Examine: Inspect encrypted column metadata, column master and encryption keys, driver feature support, enclave attestation where applicable and key store permissions.
Review sign-in error number and state, selected database, Entra token principal, group claims, CREATE USER scope, role membership and firewall reachability. These checks primarily test Diagnosing login failure and group-based access instead of the critical system behavior in this case. Examine: Inspect encrypted column metadata, column master and encryption keys, driver feature support, enclave attestation where applicable and key store permissions.


