The correct answer is to add a bucket policy that denies access unless `aws:SecureTransport` is true. This condition key explicitly enforces encryption in transit by rejecting any HTTP requests, ensuring all data moving between the S3 bucket and your on-premises application is encrypted via HTTPS. On the AWS Certified Security Specialty SCS-C02 exam, this concept tests your ability to distinguish between encryption at rest (like SSE) and encryption in transit, a common trap where candidates confuse server-side encryption with transport layer security. The exam often presents scenarios where a bucket policy using `aws:SecureTransport` is the only way to enforce HTTPS for all clients, as default S3 endpoints do not block HTTP. Remember the mnemonic: "SecureTransport secures the transport" — if you see a condition key with "SecureTransport" in a policy, it’s always about enforcing HTTPS, not about data at rest.
SCS-C02 Data Protection Practice Question
This SCS-C02 practice question tests your understanding of data protection. 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 is using Amazon S3 to store confidential documents. They want to ensure that all data is encrypted in transit between the S3 bucket and their on-premises application. Which of the following should be enforced?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Add a bucket policy that denies access unless 'aws:SecureTransport' is true.
Option D is correct because 'aws:SecureTransport' condition in a bucket policy enforces HTTPS for all requests. Option A is wrong because SSE only encrypts at rest. Option B is wrong because S3 endpoints use HTTPS by default, but not enforced. Option C is wrong because CloudFront does not enforce encryption to origin.
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.
✓
Add a bucket policy that denies access unless 'aws:SecureTransport' is true.
Why this is correct
This enforces HTTPS for all requests to the bucket.
Related concept
Read the scenario before looking for a memorised answer.
✗
Use Amazon CloudFront with a custom origin pointing to the S3 bucket.
Why it's wrong here
CloudFront can use HTTPS, but does not enforce it from the origin.
✗
Use a VPC endpoint for S3.
Why it's wrong here
VPC endpoints use AWS network, but do not enforce HTTPS.
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.
Data Protection — This question tests Data Protection — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Add a bucket policy that denies access unless 'aws:SecureTransport' is true. — Option D is correct because 'aws:SecureTransport' condition in a bucket policy enforces HTTPS for all requests. Option A is wrong because SSE only encrypts at rest. Option B is wrong because S3 endpoints use HTTPS by default, but not enforced. Option C is wrong because CloudFront does not enforce encryption to origin.
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.