- A
Attach a permission boundary to each developer IAM user that limits them to creating roles with only the permissions they are allowed to grant
The permission boundary on the developer prevents them from passing permissions they do not have (iam:PassRole with a role whose boundary exceeds their own). When combined with an IAM policy that requires any role they create to have the same boundary attached, privilege escalation is prevented systematically.
- B
Enable IAM Access Analyzer to detect when developers create overly permissive roles
Why wrong: IAM Access Analyzer identifies resources accessible from outside the account (external access) or unused permissions (unused access), and generates policy recommendations. It detects after-the-fact and requires manual remediation. It does not prevent a developer from creating an overly permissive role in the first place.
- C
Require MFA for all IAM API calls so developers must re-authenticate before creating roles
Why wrong: MFA verifies identity but does not restrict what actions an authenticated identity can take. A developer who has iam:CreateRole permission can still create an Administrator role after MFA verification. Permission boundaries restrict what actions are possible, not who can authenticate.
- D
Enable CloudTrail logging for all IAM API calls and set up a CloudWatch alarm for iam:CreateRole events
Why wrong: CloudTrail logging detects role creation after the fact. An alarm notifies the team but does not block the action. The developer can still create an overly permissive role before any remediation occurs. Permission boundaries prevent the escalation proactively.
SOA-C02 Practice Question: IAM permission boundaries to constrain what…
This SOA-C02 practice question tests your understanding of security and compliance. 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. A key principle to apply: iAM permission boundary. 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.
Developers are allowed to create IAM roles for their Lambda functions. However, the security team is concerned that developers could create roles with Administrator access, granting Lambda functions more permissions than the developers themselves have. What IAM feature prevents privilege escalation in this scenario?
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
Attach a permission boundary to each developer IAM user that limits them to creating roles with only the permissions they are allowed to grant
Permission boundaries are an IAM feature that allow you to set the maximum permissions that an identity-based policy can grant to a principal. By attaching a permission boundary to each developer IAM user that restricts them to creating roles with only the permissions they are allowed to grant, you prevent the developer from creating a Lambda execution role with AdministratorAccess or any other policy that exceeds the boundary. This directly addresses the privilege escalation concern because the boundary acts as a ceiling on the permissions the developer can delegate to the role.
Key principle: IAM permission boundary
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Attach a permission boundary to each developer IAM user that limits them to creating roles with only the permissions they are allowed to grant
Why this is correct
The permission boundary on the developer prevents them from passing permissions they do not have (iam:PassRole with a role whose boundary exceeds their own). When combined with an IAM policy that requires any role they create to have the same boundary attached, privilege escalation is prevented systematically.
Related concept
IAM permission boundary
- ✗
Enable IAM Access Analyzer to detect when developers create overly permissive roles
Why it's wrong here
IAM Access Analyzer identifies resources accessible from outside the account (external access) or unused permissions (unused access), and generates policy recommendations. It detects after-the-fact and requires manual remediation. It does not prevent a developer from creating an overly permissive role in the first place.
- ✗
Require MFA for all IAM API calls so developers must re-authenticate before creating roles
Why it's wrong here
MFA verifies identity but does not restrict what actions an authenticated identity can take. A developer who has iam:CreateRole permission can still create an Administrator role after MFA verification. Permission boundaries restrict what actions are possible, not who can authenticate.
- ✗
Enable CloudTrail logging for all IAM API calls and set up a CloudWatch alarm for iam:CreateRole events
Why it's wrong here
CloudTrail logging detects role creation after the fact. An alarm notifies the team but does not block the action. The developer can still create an overly permissive role before any remediation occurs. Permission boundaries prevent the escalation proactively.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse detective controls (like Access Analyzer, CloudTrail, or alarms) with preventive controls, thinking that monitoring or alerting can stop the action, when only a preventive mechanism like a permission boundary can block the creation of an overly permissive role at the time of the API call.
Detailed technical explanation
How to think about this question
Permission boundaries work by evaluating the effective permissions as the intersection of the identity-based policy and the boundary policy. When a developer creates a role, the boundary is applied to the developer's IAM user, not to the role itself, meaning the developer can only attach policies to the role that are within the boundary's scope. In a real-world scenario, if a developer has a boundary that allows only `lambda:InvokeFunction` and `logs:CreateLogGroup`, they cannot attach an `AdministratorAccess` policy to the role because that policy would exceed the boundary, and the `iam:CreateRole` or `iam:AttachRolePolicy` action would be denied.
KKey Concepts to Remember
- IAM permission boundary
- effective permissions
- developer self-service
- privilege escalation prevention
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
IAM permission boundary
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.
Quick reference
Cloud Service Model Comparison
| Model | You Manage | Provider Manages | Examples |
|---|---|---|---|
| IaaS | OS, runtime, apps, data | Hardware, hypervisor, networking | EC2, Azure VMs, GCP Compute Engine |
| PaaS | Apps and data | OS, runtime, middleware, hardware | Elastic Beanstalk, Azure App Service |
| SaaS | Data and settings only | Everything else | Microsoft 365, Salesforce, Workday |
| FaaS / Serverless | Function code only | Infra, scaling, runtime | Lambda, Azure Functions, Cloud Run |
| CaaS | Containers and apps | Kubernetes, OS, hardware | EKS, AKS, GKE |
What to study next
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FAQ
Questions learners often ask
What does this SOA-C02 question test?
Security and Compliance — This question tests Security and Compliance — IAM permission boundary.
What is the correct answer to this question?
The correct answer is: Attach a permission boundary to each developer IAM user that limits them to creating roles with only the permissions they are allowed to grant — Permission boundaries are an IAM feature that allow you to set the maximum permissions that an identity-based policy can grant to a principal. By attaching a permission boundary to each developer IAM user that restricts them to creating roles with only the permissions they are allowed to grant, you prevent the developer from creating a Lambda execution role with AdministratorAccess or any other policy that exceeds the boundary. This directly addresses the privilege escalation concern because the boundary acts as a ceiling on the permissions the developer can delegate to the role.
What should I do if I get this SOA-C02 question wrong?
Review iAM permission boundary, then practise related SOA-C02 questions on the same topic to reinforce the concept.
What is the key concept behind this question?
IAM permission boundary
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Last reviewed: Jun 11, 2026
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