Your question is Least Privilege IAM in Multi-Tenant. Take a moment with it on the right.
Talk me through your thinking if you like. When you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes).
How would you configure IAM policies to enforce the principle of least privilege in a multi-tenant environment on Google Cloud?
Explain how you would model tenants in the Google Cloud resource hierarchy, scope human and workload identities, prevent cross-tenant access, and handle privileged administration. Name the policies, conditions, and monitoring you would use, and describe how you would verify that the design works.