- A
Edit AppDeployRole’s attached identity policy to add iam:CreateRole again; permission boundaries only apply when permissions are missing.
Why wrong: Permission boundaries are an additional authorization constraint (an upper limit). Even if the role’s identity policy allows an action, IAM will deny it when the permission boundary does not allow the action for the resource.
- B
Update DeployBoundary to allow iam:CreateRole for only the required resource ARNs, following least privilege.
IAM permission boundaries define the maximum set of permissions the role can use. To permit iam:CreateRole, the DeployBoundary must explicitly allow iam:CreateRole (and scope it to the required resources). The attached identity policy alone is not sufficient when the boundary is more restrictive.
- C
Remove the permission boundary from the role because permission boundaries are not enforced at runtime.
Why wrong: Permission boundaries are enforced during authorization checks. Removing the boundary would eliminate the security control described in the scenario and is not the least-privilege fix.
- D
Encrypt the deployment artifacts with KMS so IAM denies become KMS authorization failures.
Why wrong: Encryption with KMS is unrelated to IAM authorization for iam:CreateRole. The failure is an IAM action authorization problem, not a data-encryption permission issue.
Quick Answer
The answer is to update the DeployBoundary permission boundary to allow iam:CreateRole for the required resource ARNs, following least privilege. This is correct because an IAM permission boundary defines the maximum permissions a role can have, and effective permissions are the intersection of the identity policy and the boundary. Even if the identity policy explicitly allows iam:CreateRole, the boundary acts as a ceiling—if it does not include that action, the action is implicitly denied. On the SAA-C03 exam, this tests your understanding of how permission boundaries override identity-based policies, a common trap where candidates assume the identity policy alone is sufficient. The key insight is that boundaries restrict, not expand, permissions. Memory tip: think of the boundary as a glass ceiling—your identity policy can reach for it, but you cannot break through.
SAA-C03 Design Secure Architectures Practice Question
This SAA-C03 practice question tests your understanding of design secure architectures. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. 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.
A deployment engineer created an IAM role for an automation workflow (AppDeployRole). The role has an attached identity policy that allows iam:CreateRole for specific resource ARNs. However, the role is also created with a permission boundary named DeployBoundary. The DeployBoundary policy currently does not include the iam:CreateRole action. During execution, the automation fails with AccessDenied for iam:CreateRole, even though the attached identity policy allows it. What is the best fix?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue:
"best"Why it matters: Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
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
Update DeployBoundary to allow iam:CreateRole for only the required resource ARNs, following least privilege.
B is correct because when an IAM role has a permission boundary, the boundary defines the maximum permissions the role can have. Even if the identity-based policy allows iam:CreateRole, the effective permissions are the intersection of the identity policy and the permission boundary. Since DeployBoundary does not include iam:CreateRole, the action is denied. Updating the boundary to allow iam:CreateRole for the required resource ARNs, following least privilege, grants the necessary permission while still constraining the role.
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.
- ✗
Edit AppDeployRole’s attached identity policy to add iam:CreateRole again; permission boundaries only apply when permissions are missing.
Why it's wrong here
Permission boundaries are an additional authorization constraint (an upper limit). Even if the role’s identity policy allows an action, IAM will deny it when the permission boundary does not allow the action for the resource.
- ✓
Update DeployBoundary to allow iam:CreateRole for only the required resource ARNs, following least privilege.
Why this is correct
IAM permission boundaries define the maximum set of permissions the role can use. To permit iam:CreateRole, the DeployBoundary must explicitly allow iam:CreateRole (and scope it to the required resources). The attached identity policy alone is not sufficient when the boundary is more restrictive.
Clue confirmation
The clue word "best" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Remove the permission boundary from the role because permission boundaries are not enforced at runtime.
Why it's wrong here
Permission boundaries are enforced during authorization checks. Removing the boundary would eliminate the security control described in the scenario and is not the least-privilege fix.
- ✗
Encrypt the deployment artifacts with KMS so IAM denies become KMS authorization failures.
Why it's wrong here
Encryption with KMS is unrelated to IAM authorization for iam:CreateRole. The failure is an IAM action authorization problem, not a data-encryption permission issue.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often think permission boundaries are optional or only restrict when the identity policy is too permissive, but in reality they are an absolute limit that always reduces effective permissions, so even if the identity policy allows an action, the boundary can deny it.
Trap categories for this question
Scenario analysis trap
Permission boundaries are enforced during authorization checks. Removing the boundary would eliminate the security control described in the scenario and is not the least-privilege fix.
Detailed technical explanation
How to think about this question
Permission boundaries in AWS IAM are evaluated as a separate policy that sets the maximum permissions for a role or user. The effective permissions are the logical AND of the identity-based policy and the permission boundary. This means any action not explicitly allowed in the boundary is implicitly denied, regardless of the identity policy. In automation workflows, this is critical to prevent privilege escalation; for example, a role with iam:CreateRole in its identity policy but a boundary lacking that action cannot create roles, ensuring the boundary acts as a guardrail.
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.
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FAQ
Questions learners often ask
What does this SAA-C03 question test?
Design Secure Architectures — This question tests Design Secure Architectures — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Update DeployBoundary to allow iam:CreateRole for only the required resource ARNs, following least privilege. — B is correct because when an IAM role has a permission boundary, the boundary defines the maximum permissions the role can have. Even if the identity-based policy allows iam:CreateRole, the effective permissions are the intersection of the identity policy and the permission boundary. Since DeployBoundary does not include iam:CreateRole, the action is denied. Updating the boundary to allow iam:CreateRole for the required resource ARNs, following least privilege, grants the necessary permission while still constraining the role.
What should I do if I get this SAA-C03 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Are there clue words in this question I should notice?
Yes — watch for: "best". Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 11, 2026
This SAA-C03 practice question is part of Courseiva's free Amazon Web Services certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the SAA-C03 exam.
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