- A
Define a custom role with the necessary permissions and assign it to the audit group at the organization level.
Why wrong: Custom roles define permissions but do not automatically bind them to projects.
- B
Configure Audit Logs to alert when new projects are created without the audit group.
Why wrong: Audit Logs only provide visibility, not enforcement.
- C
Create an Organization Policy with a custom constraint that requires specific IAM bindings on all projects.
Organization policies with custom constraints can enforce IAM bindings on new projects using the constraints/iam.allowedPolicyMemberDomains or custom constraints via the Cloud Asset API.
- D
Add the audit group to the organization node with the desired roles, and rely on inheritance for all new projects.
Why wrong: Option D is incorrect because granting roles at the organization level creates an inherited permission on all projects, but it does not create explicit project-level bindings. While the audit group would have the required permissions, the binding is at the org level, not project level. Additionally, if the organization has multiple organizational units or requires different bindings per project, this approach does not provide the flexibility of enforcing per-project bindings. Organization Policy with custom constraints (Option C) ensures the binding is explicitly at the project level.
Enforce Specific IAM Bindings on All New Projects Using Organization Policy
This PCSE practice question tests your understanding of pcse exam topics. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
An organization has multiple Google Cloud projects and wants to enforce a policy that all new projects automatically have a specific set of IAM roles bound to an internal audit group at the project level. Which approach should be taken?
Quick Answer
The correct approach is to create an Organization Policy with a custom constraint that requires specific IAM bindings on all projects. This works because Organization Policies, enforced by the Resource Manager service, allow you to define custom constraints using the CEL (Common Expression Language) to mandate that certain IAM bindings—such as an internal audit group with specific roles—must exist at the project level. When a new project is created, the policy is evaluated automatically, and if the required bindings are missing, the project creation is denied. On the Google Professional Cloud Security Engineer exam, this tests your understanding of how to enforce IAM role bindings on all new projects using organization policy, a common scenario for centralized audit compliance. A frequent trap is confusing this with folder-level IAM inheritance or using a VPC Service Controls perimeter; remember that custom constraints are the only way to enforce *presence* of bindings, not just restrict them. Memory tip: think “Custom Constraint = Custom Requirement” to enforce what must exist, not just what must be blocked.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Create an Organization Policy with a custom constraint that requires specific IAM bindings on all projects.
Option C is correct because Organization Policies with custom constraints allow you to enforce that specific IAM bindings must exist on all projects within the organization. This ensures that every new project automatically includes the audit group with the required roles, as the policy is evaluated at project creation time and enforced by the Resource Manager service.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Define a custom role with the necessary permissions and assign it to the audit group at the organization level.
Why it's wrong here
Custom roles define permissions but do not automatically bind them to projects.
- ✗
Configure Audit Logs to alert when new projects are created without the audit group.
Why it's wrong here
Audit Logs only provide visibility, not enforcement.
- ✓
Create an Organization Policy with a custom constraint that requires specific IAM bindings on all projects.
Why this is correct
Organization policies with custom constraints can enforce IAM bindings on new projects using the constraints/iam.allowedPolicyMemberDomains or custom constraints via the Cloud Asset API.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Add the audit group to the organization node with the desired roles, and rely on inheritance for all new projects.
Why it's wrong here
Option D is incorrect because granting roles at the organization level creates an inherited permission on all projects, but it does not create explicit project-level bindings. While the audit group would have the required permissions, the binding is at the org level, not project level. Additionally, if the organization has multiple organizational units or requires different bindings per project, this approach does not provide the flexibility of enforcing per-project bindings. Organization Policy with custom constraints (Option C) ensures the binding is explicitly at the project level.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Candidates might think that adding the audit group at the organization level (Option D) automatically gives the group the roles at the project level via inheritance. However, while inheritance does propagate roles from the organization to projects, the requirement is to have roles bound explicitly at the project level. Additionally, inherited roles cannot be overridden or removed at the project level, but they are not considered project-level bindings. Option D does not meet the requirement of project-level bindings.
Detailed technical explanation
How to think about this question
Organization Policy custom constraints use the `constraints/iam.allowedPolicyMemberDomains` or a custom constraint with a CEL (Common Expression Language) condition to require specific IAM bindings. Under the hood, the Resource Manager evaluates these constraints during project creation and update operations, rejecting any request that violates the policy. This approach is critical in regulated environments where audit access must be guaranteed across all projects without relying on manual configuration or inheritance quirks.
KKey Concepts to Remember
- Read the scenario before looking for a memorised answer.
- Find the constraint that changes the correct option.
- Eliminate answers that are true in general but not in this case.
TExam Day Tips
- Watch for words such as best, first, most likely and least administrative effort.
- Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A company's IT admin needs to give a contractor read-only access to production logs without sharing account credentials. Using role-based access control (RBAC) and temporary scoped permissions — not a permanent shared password — is the correct pattern. Questions like this test whether you can apply least-privilege access across cloud identity services.
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
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FAQ
Questions learners often ask
What does this PCSE question test?
Read the scenario before looking for a memorised answer.
What is the correct answer to this question?
The correct answer is: Create an Organization Policy with a custom constraint that requires specific IAM bindings on all projects. — Option C is correct because Organization Policies with custom constraints allow you to enforce that specific IAM bindings must exist on all projects within the organization. This ensures that every new project automatically includes the audit group with the required roles, as the policy is evaluated at project creation time and enforced by the Resource Manager service.
What should I do if I get this PCSE question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 25, 2026
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