GCP Professional Cloud Security Engineer Practice Question

Policy Simulator is designed for exactly this use case. It lets administrators model proposed IAM policy changes-such as removing a role binding-and then simulates access requests against historical audit logs to show which principals would lose or retain specific permissions. The simulation runs in an isolated environment, so it has no effect on production policies or workloads. IAM Recommender can suggest least-privilege roles but cannot predict the precise impact of a manual role removal; Policy Analyzer inventories current access but does not model changes; Policy Troubleshooter explains a single access decision rather than evaluating bulk changes across many principals.