The answer is to use `aws:ResourceTag` in the Condition element of an IAM policy. This condition key allows you to restrict S3 access based on resource tags by evaluating the tags attached to the S3 bucket itself, so when a developer attempts an action, the policy checks if the bucket’s `Environment` tag equals `Dev` before granting full access. On the AWS Certified Security Specialty SCS-C02 exam, this tests your understanding of how IAM condition keys differentiate between resource attributes and request attributes—a common trap is confusing `aws:ResourceTag` with `aws:RequestTag`, which only enforces tags on the API request, not on the existing resource. Remember the memory tip: “ResourceTag checks what’s already on the bucket; RequestTag checks what you’re sending with the request.”
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 company wants to allow its development team to have full access to Amazon S3 buckets that are tagged with 'Environment: Dev'. Which IAM policy element should be used to restrict access based on tags?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Use 'aws:ResourceTag' in the Condition element
Option B is correct because IAM policies can use Condition blocks with 'aws:ResourceTag' to restrict actions based on resource tags. Option A is incorrect because 'aws:RequestTag' is used to require specific tags on requests, not on resources. Option C is incorrect because 'aws:SourceTag' is not a valid condition key. Option D is incorrect because 'aws:PrincipalTag' is used to restrict based on the principal's tags.
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.
✗
Use 'aws:PrincipalTag' in the Condition element
Why it's wrong here
'aws:PrincipalTag' is used to restrict based on tags on the principal, not the resource.
✗
Use 'aws:SourceTag' in the Condition element
Why it's wrong here
'aws:SourceTag' is not a valid IAM condition key.
✗
Use 'aws:RequestTag' in the Condition element
Why it's wrong here
'aws:RequestTag' checks tags on the request, not on the resource.
✓
Use 'aws:ResourceTag' in the Condition element
Why this is correct
'aws:ResourceTag' allows you to restrict actions based on tags attached to the resource.
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 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: Use 'aws:ResourceTag' in the Condition element — Option B is correct because IAM policies can use Condition blocks with 'aws:ResourceTag' to restrict actions based on resource tags. Option A is incorrect because 'aws:RequestTag' is used to require specific tags on requests, not on resources. Option C is incorrect because 'aws:SourceTag' is not a valid condition key. Option D is incorrect because 'aws:PrincipalTag' is used to restrict based on the principal's tags.
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.
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Question Discussion
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