The answer is that the deny statement does not apply to the users attempting to access the bucket. This is the most likely reason an S3 bucket policy IP restriction is not working due to deny statement scope, because an explicit deny in a separate statement would normally override any allow—so if users outside the IP range are still gaining access, the deny must not be targeting them. On the AWS Certified Solutions Architect Professional SAP-C02 exam, this scenario tests your understanding of how bucket policy evaluation logic works, specifically that a deny statement only blocks access for the principals, actions, or conditions it explicitly names; if the deny applies to a different principal (e.g., a specific role or account), it has no effect on other users. A common trap is assuming any deny in the policy automatically blocks all access, but the scope of the deny statement is critical. Memory tip: “Deny only denies what it names—if it misses the user, access remains.”
SAP-C02 Continuous Improvement for Existing Solutions Practice Question
This SAP-C02 practice question tests your understanding of continuous improvement for existing 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.
An IAM policy is attached to an S3 bucket to allow access only from a specific IP range. Users report that they can access the bucket from IP addresses outside the range. The bucket policy also includes another statement that denies access to all principals. What is the most likely reason users outside the IP range can still access the bucket?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "most likely"
Why it matters: Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The deny statement does not apply to the users attempting to access the bucket.
Option A is correct because an explicit deny in another statement would override the allow, but the question says users can access from outside the range, meaning the deny is not effective. The most likely reason is that the deny statement does not apply to the users (e.g., it applies to a different principal). Option B is incorrect because the policy is a bucket policy, not an IAM policy. Option C is incorrect because the condition is correct syntax. Option D is incorrect because the bucket policy is applied to the bucket, not IAM users.
Key principle: ACLs process entries top to bottom and stop at the first match. Entry order and interface direction matter as much as the permit or deny statement.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
The condition key 'aws:SourceIp' is misspelled.
Why it's wrong here
The condition key is correctly spelled.
✓
The deny statement does not apply to the users attempting to access the bucket.
Why this is correct
The deny statement might be scoped to a different principal, allowing access from other IPs.
Clue confirmation
The clue word "most likely" in the question point toward this answer.
Related concept
Standard ACLs match source addresses.
✗
The policy is an IAM policy, not a bucket policy, and the condition key is invalid.
Why it's wrong here
The policy is a bucket policy (resource is S3 bucket arn).
✗
The policy is attached to the IAM user instead of the bucket.
Why it's wrong here
The policy is a bucket policy, but it could be attached to IAM user as well; however, the issue is the deny not applying.
Common exam traps
Common exam trap: ACLs stop at the first match
ACLs are processed top to bottom. The first matching entry wins, and an implicit deny usually exists at the end.
Detailed technical explanation
How to think about this question
ACL questions test precision: source, destination, protocol, port and direction. A generally correct ACL can still fail if it is applied on the wrong interface or in the wrong direction.
KKey Concepts to Remember
Standard ACLs match source addresses.
Extended ACLs can match source, destination, protocol and ports.
The first matching ACL entry is used.
There is usually an implicit deny at the end.
TExam Day Tips
→Check inbound versus outbound direction.
→Read the ACL from top to bottom.
→Look for a broader permit or deny above the intended line.
Key takeaway
ACLs process entries top to bottom and stop at the first match. Entry order and interface direction matter as much as the permit or deny statement.
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.
Review ACL processing order, placement rules (standard near destination, extended near source), and inbound vs outbound direction. Study wildcard masks and implicit deny. Then practise related SAP-C02 ACL questions on filtering logic and placement.
Continuous Improvement for Existing Solutions — This question tests Continuous Improvement for Existing Solutions — Standard ACLs match source addresses..
What is the correct answer to this question?
The correct answer is: The deny statement does not apply to the users attempting to access the bucket. — Option A is correct because an explicit deny in another statement would override the allow, but the question says users can access from outside the range, meaning the deny is not effective. The most likely reason is that the deny statement does not apply to the users (e.g., it applies to a different principal). Option B is incorrect because the policy is a bucket policy, not an IAM policy. Option C is incorrect because the condition is correct syntax. Option D is incorrect because the bucket policy is applied to the bucket, not IAM users.
What should I do if I get this SAP-C02 question wrong?
Review ACL processing order, placement rules (standard near destination, extended near source), and inbound vs outbound direction. Study wildcard masks and implicit deny. Then practise related SAP-C02 ACL questions on filtering logic and placement.
Are there clue words in this question I should notice?
Yes — watch for: "most likely". Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
What is the key concept behind this question?
Standard ACLs match source addresses.
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