The correct answer is that a permissions boundary alone does not grant permissions; an identity-based policy is also required. This is because a permissions boundary sets the maximum ceiling for what an IAM user or role can do, but it does not actively authorize any actions—only an attached identity-based policy can grant specific permissions. The effective permissions are the logical intersection of the boundary and the identity-based policy, meaning the user can only perform actions allowed by both. On the AWS Certified Security Specialty SCS-C02 exam, this concept tests your understanding of how boundaries limit privilege escalation without replacing traditional policies, and a common trap is assuming boundaries alone suffice for access. Remember the memory tip: boundaries are a cap, not a key—they limit the maximum, but you still need a policy to unlock actions.
SCS-C02 Identity and Access Management Practice Question
This SCS-C02 practice question tests your understanding of identity and access management. 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.
A security engineer is designing a permissions boundary for an IAM user. Which TWO statements about permissions boundaries are correct?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The effective permissions are the intersection of the identity-based policy and the permissions boundary.
Options A and C are correct. A: A permissions boundary limits the maximum permissions for the user, but the user must also have an identity-based policy granting the actions. C: The effective permissions are the intersection of the boundary and the identity-based policy. Option B is wrong because resource-based policies are not affected by boundaries. Option D is wrong because boundaries do not affect service-linked roles. Option E is wrong because boundaries can be used with roles as well.
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.
✗
Permissions boundaries can be applied to service-linked roles.
Why it's wrong here
Service-linked roles cannot have boundaries.
✗
Permissions boundaries can only be applied to IAM users, not roles.
Why it's wrong here
Boundaries can be applied to both users and roles.
✓
The effective permissions are the intersection of the identity-based policy and the permissions boundary.
Why this is correct
Intersection of both policies.
Related concept
Read the scenario before looking for a memorised answer.
✗
Permissions boundaries can override resource-based policies.
Why it's wrong here
Resource-based policies are independent.
✓
A permissions boundary alone does not grant permissions; an identity-based policy is also required.
Why this is correct
Boundaries only limit, not grant.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Detailed technical explanation
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
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.
Use explanations to understand the rule behind the answer.
TExam Day Tips
→Underline the problem statement mentally.
→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 SCS-C02 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
Identity and Access Management — This question tests Identity and Access Management — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: The effective permissions are the intersection of the identity-based policy and the permissions boundary. — Options A and C are correct. A: A permissions boundary limits the maximum permissions for the user, but the user must also have an identity-based policy granting the actions. C: The effective permissions are the intersection of the boundary and the identity-based policy. Option B is wrong because resource-based policies are not affected by boundaries. Option D is wrong because boundaries do not affect service-linked roles. Option E is wrong because boundaries can be used with roles as well.
What should I do if I get this SCS-C02 question wrong?
Identify which SCS-C02 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. Which TWO of the following are valid use cases for IAM permissions boundaries? (Choose TWO.)
hard
A.To allow cross-account access to an S3 bucket
✓ B.To prevent an IAM user from escalating privileges
✓ C.To allow developers to create roles with limited permissions
D.To delegate permission management to non-administrators
E.To restrict access to an S3 bucket based on IP address
Why B: Options A and D are valid uses. Option B is incorrect because permissions boundaries don't delegate administration. Option C is incorrect because boundaries are applied to IAM entities, not resource-based policies. Option E is incorrect because cross-account access is governed by trust policies, not boundaries.
Variation 2. A security engineer is designing a permissions boundary for an IAM role used by an EC2 instance. The boundary must allow the instance to list all S3 buckets but deny the ability to delete any bucket. Which policy should be used as the permissions boundary?
Why A: Permissions boundaries limit the maximum permissions. Option A allows both actions. Option B denies s3:DeleteBucket but allows s3:ListAllMyBuckets, which meets the requirement. Option C denies list. Option D allows delete.
Variation 3. A security engineer is designing a permissions boundary for an IAM role used by an EC2 instance. The role must be able to read from an S3 bucket (my-bucket) and write to CloudWatch Logs. Which THREE conditions must be met for the role to have effective permissions? (Choose THREE.)
hard
A.The EC2 instance must have an instance profile attached.
✓ B.The effective permissions are the intersection of the boundary and identity-based policies.
✓ C.The identity-based policy attached to the role must allow the required actions.
✓ D.The permissions boundary policy must allow the required actions.
E.The S3 bucket policy must explicitly allow the role.
Why B: Options A, B, and D are correct: the permissions boundary must allow the actions, the identity-based policy must allow them, and the intersection is effective. Option C is not required; resource-based policies are optional. Option E is irrelevant.
Last reviewed: Jun 20, 2026
Question Discussion
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
This SCS-C02 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 SCS-C02 exam.
Question Discussion
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
Sign in to join the discussion.