The correct approach is to create an IAM policy that allows access to specific S3 buckets based on tags, and assign the policy to an IAM role that developers can assume. This method leverages attribute-based access control (ABAC) with IAM Identity Center, where user attributes like team membership are passed as session tags when the role is assumed, enabling dynamic, fine-grained S3 access without managing static group memberships. On the AWS Certified Solutions Architect Professional SAP-C02 exam, this scenario tests your understanding of ABAC as a scalable alternative to traditional IAM groups or resource-based policies, which become unwieldy as teams grow. A common trap is defaulting to S3 bucket policies, but those lack the ability to evaluate user attributes from Identity Center. Remember the mnemonic "TAG for ABAC" — Tags, Attributes, Granular — to recall that ABAC uses tags on principals and resources to grant access dynamically.
SAP-C02 Design for New Solutions Practice Question
This SAP-C02 practice question tests your understanding of design for new solutions. 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 company wants to give its developers access to specific Amazon S3 buckets based on their team membership. The company uses AWS IAM Identity Center (successor to AWS SSO) for user management. Which approach should the company use to grant fine-grained access?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Create an IAM policy that allows access to specific buckets based on tags, and assign the policy to an IAM role that developers can assume.
Using attribute-based access control (ABAC) with IAM Identity Center allows dynamic permissions based on user attributes like team. Option B (IAM groups) is less dynamic. Option C (S3 bucket policies) is not tied to user attributes. Option D (resource-based policies) is not scalable.
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.
✓
Create an IAM policy that allows access to specific buckets based on tags, and assign the policy to an IAM role that developers can assume.
Why this is correct
ABAC with tags enables fine-grained, scalable access control.
Related concept
Read the scenario before looking for a memorised answer.
✗
Create separate IAM groups for each team and attach policies granting access to the appropriate buckets.
Why it's wrong here
This approach works but is less flexible than ABAC for dynamic attributes.
✗
Use resource-based policies on the buckets to allow access from the IAM Identity Center users.
Why it's wrong here
Resource-based policies cannot directly reference IAM Identity Center users.
✗
Use S3 bucket policies that grant access to specific IAM users based on their usernames.
Why it's wrong here
This requires updating bucket policies for each user change.
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 SAP-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.
Design for New Solutions — This question tests Design for New Solutions — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Create an IAM policy that allows access to specific buckets based on tags, and assign the policy to an IAM role that developers can assume. — Using attribute-based access control (ABAC) with IAM Identity Center allows dynamic permissions based on user attributes like team. Option B (IAM groups) is less dynamic. Option C (S3 bucket policies) is not tied to user attributes. Option D (resource-based policies) is not scalable.
What should I do if I get this SAP-C02 question wrong?
Identify which SAP-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.
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Question Discussion
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