The correct answer is that any PutObject request which does not include the encryption header will be denied. This IAM policy enforces SSE-S3 encryption on S3 uploads by using a condition block that checks for the `x-amz-server-side-encryption` header with a value of `AES256`; if the client fails to specify this header in the upload request, the policy explicitly denies the action. On the AWS Certified SAP on AWS Specialty PAS-C01 exam, this scenario tests your understanding of how IAM policies can enforce encryption at the object level without relying on bucket policies or default encryption settings—a common trap is assuming the policy automatically encrypts data, but it only mandates that the client includes the header. A helpful memory tip is to think of it as a "header check" rather than an "auto-encrypt" rule: if the header isn't present, the request is blocked, so the client must actively comply.
PAS-C01 Technology Practice Question
This PAS-C01 practice question tests your understanding of technology. 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.
The exhibit shows an IAM policy for an SAP backup process that uploads backups to S3. An administrator wants to ensure that all uploads are encrypted using SSE-S3. What does this policy enforce?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Any PutObject request that does not include the encryption header will be denied.
Option C is correct: The condition requires that the PutObject request includes the x-amz-server-side-encryption header with value AES256. If not included, the request is denied. Option A is wrong: The policy does not enforce encryption at rest automatically; it requires the client to specify it. Option B is wrong: It doesn't require KMS. Option D is wrong: The policy does not require client-side encryption.
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.
✗
The backup process must encrypt the files before uploading them.
Why it's wrong here
Client-side encryption is not required; server-side encryption is enforced.
✗
The backup process must use AWS KMS to encrypt the objects.
Why it's wrong here
The condition specifies AES256, which is SSE-S3, not KMS.
✓
Any PutObject request that does not include the encryption header will be denied.
Why this is correct
The condition requires the encryption header; without it, the request fails.
Related concept
Read the scenario before looking for a memorised answer.
✗
The bucket automatically encrypts objects with SSE-S3 even if the request does not specify it.
Why it's wrong here
The policy only enforces client-provided encryption.
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 PAS-C01 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.
Technology — This question tests Technology — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Any PutObject request that does not include the encryption header will be denied. — Option C is correct: The condition requires that the PutObject request includes the x-amz-server-side-encryption header with value AES256. If not included, the request is denied. Option A is wrong: The policy does not enforce encryption at rest automatically; it requires the client to specify it. Option B is wrong: It doesn't require KMS. Option D is wrong: The policy does not require client-side encryption.
What should I do if I get this PAS-C01 question wrong?
Identify which PAS-C01 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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