The answer is that the upload fails because the condition matches HTTP requests. This occurs because the S3 bucket policy uses a Deny effect with a condition key of aws:SecureTransport set to false, which explicitly blocks any request that does not use HTTPS. Since the application attempts to upload via HTTP, SecureTransport is false, triggering the deny rule and overriding any other allow statements in the policy. On the AWS Certified DevOps Engineer Professional DOP-C02 exam, this scenario tests your understanding of how S3 bucket policies enforce HTTPS uploads through conditional deny logic—a common trap is assuming an explicit allow can override a deny, but in IAM policy evaluation, explicit denies always win. Remember the memory tip: “Deny always defeats allow; if SecureTransport is false, your upload takes a fall.”
DOP-C02 Security and Compliance Practice Question
This DOP-C02 practice question tests your understanding of security and compliance. 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.
Refer to the exhibit. The S3 bucket policy is applied to a bucket. An application attempts to upload an object to the bucket using HTTP (not HTTPS). What will happen?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The upload fails because the condition matches HTTP requests
The policy denies all s3 actions when SecureTransport is false (i.e., HTTP). Option A is wrong because the deny overrides any allow. Option B is wrong because the condition matches HTTP requests. Option D is wrong because the policy explicitly denies HTTP.
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 upload fails because the condition matches HTTP requests
Why this is correct
Deny applies when SecureTransport is false.
Related concept
Standard ACLs match source addresses.
✗
The upload succeeds if the bucket also has an allow policy for the user
Why it's wrong here
A deny always overrides an allow.
✗
The upload succeeds because there is no explicit allow statement
Why it's wrong here
Deny statements override implicit allows.
✗
The upload fails because the bucket policy does not allow any access
Why it's wrong here
There is no explicit allow, but an implicit allow could exist from IAM; however, the deny blocks HTTP.
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 DOP-C02 ACL questions on filtering logic and placement.
Security and Compliance — This question tests Security and Compliance — Standard ACLs match source addresses..
What is the correct answer to this question?
The correct answer is: The upload fails because the condition matches HTTP requests — The policy denies all s3 actions when SecureTransport is false (i.e., HTTP). Option A is wrong because the deny overrides any allow. Option B is wrong because the condition matches HTTP requests. Option D is wrong because the policy explicitly denies HTTP.
What should I do if I get this DOP-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 DOP-C02 ACL questions on filtering logic and placement.
What is the key concept behind this question?
Standard ACLs match source addresses.
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Question Discussion
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