The answer is to add the user to an IAM group with a policy, and to attach an IAM policy directly to the user. These are the two valid ways to grant IAM user access to an S3 bucket because IAM permissions are identity-based, meaning the policy is attached to the user or group, not to the resource. In contrast, an S3 bucket policy is a resource-based policy that grants access to principals, but it cannot be attached to an IAM user directly—it specifies which users or accounts are allowed. On the AWS Certified Security Specialty SCS-C02 exam, this distinction tests your understanding of the difference between identity-based and resource-based policies, a common trap being that bucket policies can grant access to users but are not a method of granting permissions *to* the user themselves. Remember the memory tip: "Identity for the user, resource for the bucket"—if you are granting access to a user, use IAM policies; if you are controlling access from the bucket side, use bucket policies.
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.
Which TWO of the following are valid ways to grant an IAM user permissions to access an S3 bucket? (Choose 2.)
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Attach an IAM policy to the user.
IAM policies can be attached to users, and S3 bucket policies can grant access to specific users.
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.
✗
Assign an instance profile to the user.
Why it's wrong here
Instance profiles are for EC2 instances, not for users.
✗
Create a VPC endpoint policy.
Why it's wrong here
VPC endpoint policies control access via VPC, not user permissions.
✓
Attach an IAM policy to the user.
Why this is correct
IAM policies attached to users grant permissions.
Related concept
Read the scenario before looking for a memorised answer.
✓
Add the user to an IAM group with a policy.
Why this is correct
Group membership inherits permissions.
Related concept
Read the scenario before looking for a memorised answer.
✗
Use an SCP to allow access.
Why it's wrong here
SCPs are used to deny, not to grant permissions.
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 media company stores terabytes of video archives that are accessed once a year for audit purposes. Moving these objects to a cold storage tier (Azure Archive, S3 Glacier, or Google Nearline) costs a fraction of hot storage. Questions like this test whether you understand storage tiers, access frequency tradeoffs, and retrieval latency requirements.
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: Attach an IAM policy to the user. — IAM policies can be attached to users, and S3 bucket policies can grant access to specific users.
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 →
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.