Question 1,222 of 1,570
SCS-C02 Data Protection Practice Question
Network Topology
Refer to the exhibit. A security engineer runs the command shown and gets the output. What does this output indicate about the bucket's encryption configuration?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The bucket has default encryption enabled using SSE-S3.
The output shows that default encryption is set to AES256, which corresponds to SSE-S3. This means new objects uploaded to the bucket will be encrypted with SSE-S3 unless a different encryption header is provided. Therefore, option D is correct. Option A is incorrect because the default encryption setting does not prevent unencrypted objects from being uploaded if the client does not provide encryption headers—it only applies encryption by default. Option B is incorrect because SSE-KMS uses a different key management service, not AES256. Option C is incorrect because default encryption does not require all objects to be encrypted with SSE-KMS; it sets a server-side default, but clients can override with their own encryption settings.
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 bucket does not allow unencrypted objects.
Why it's wrong here
Default encryption does not prevent uploads without encryption headers; it only applies if no header is provided.
- ✗
The bucket has default encryption enabled using SSE-KMS.
Why it's wrong here
SSE-KMS would show aws:kms, not AES256.
- ✗
The bucket requires all objects to be encrypted with SSE-KMS.
Why it's wrong here
The default is SSE-S3; SSE-KMS is not required.
- ✓
The bucket has default encryption enabled using SSE-S3.
Why this is correct
AES256 indicates SSE-S3.
Quick reference
AWS S3 Storage Class Comparison
| Storage Class | Min Duration | Retrieval | Use Case |
|---|---|---|---|
| S3 Standard | None | Immediate | Frequently accessed data |
| S3 Standard-IA | 30 days | Immediate | Infrequent access, rapid retrieval |
| S3 One Zone-IA | 30 days | Immediate | Non-critical infrequent data |
| S3 Intelligent-Tiering | None | Immediate–hours | Unknown or changing access patterns |
| S3 Glacier Instant | 90 days | Milliseconds | Archive with instant retrieval |
| S3 Glacier Flexible | 90 days | Minutes–hours | Archive, flexible retrieval |
| S3 Glacier Deep Archive | 180 days | Hours | Long-term compliance archive |
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Last reviewed: Jun 20, 2026
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.
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