- A
Use SSE-C with an AWS-managed key
Why wrong: SSE-C requires the customer to provide and manage keys.
- B
Use SSE-S3
SSE-S3 automatically rotates keys with no customer effort.
- C
Use SSE-KMS with automatic key rotation
Why wrong: SSE-KMS with automatic key rotation still requires KMS key management overhead.
- D
Use client-side encryption with a custom key
Why wrong: Client-side encryption adds significant operational complexity.
Question 645 of 1,748
SCS-C02 SSE-S3 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. A key principle to apply: sSE-S3. 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 storing sensitive customer data in Amazon S3. The security team requires that all data be encrypted at rest using a key that is rotated automatically every year. Which solution meets these requirements with the LEAST operational overhead?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue:
"least"Why it matters: You want the option with minimum overhead, fewest steps, or lowest impact — not the most feature-rich or comprehensive answer.
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
✓
Use SSE-S3
Option B (SSE-S3) is correct because it uses Amazon S3-managed keys that are automatically rotated by AWS every year, meeting the encryption and rotation requirements with zero operational overhead. Option A (SSE-C) is wrong because the customer manages the keys and must handle rotation manually or not at all. Option C (SSE-KMS) can use automatic key rotation, but it requires creating a KMS key and managing permissions, adding more overhead than SSE-S3. Option D (client-side encryption) requires the customer to implement encryption logic and key management, which adds significant operational complexity.
Key principle: SSE-S3
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Use SSE-C with an AWS-managed key
Why it's wrong here
SSE-C requires the customer to provide and manage keys.
- ✓
Use SSE-S3
Why this is correct
SSE-S3 automatically rotates keys with no customer effort.
Clue confirmation
The clue word "least" in the question point toward this answer.
Related concept
SSE-S3
- ✗
Use SSE-KMS with automatic key rotation
Why it's wrong here
SSE-KMS with automatic key rotation still requires KMS key management overhead.
- ✗
Use client-side encryption with a custom key
Why it's wrong here
Client-side encryption adds significant operational complexity.
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
Treat this as a scenario question. Identify the problem, the constraint, and the best action. Then compare each option against those facts.
KKey Concepts to Remember
- SSE-S3
- Automatic key rotation
TExam Day Tips
- 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
SSE-S3
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.
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 |
What to study next
Got this wrong? Here's your next step.
Review sSE-S3, then practise related SCS-C02 questions on the same topic to reinforce the concept.
- →
Data Protection — study guide chapter
Learn the concepts, then practise the questions
- →
Data Protection practice questions
Targeted practice on this topic area only
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All SCS-C02 questions
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AWS Certified Security Specialty SCS-C02 study guide
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SCS-C02 practice test guide
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FAQ
Questions learners often ask
What does this SCS-C02 question test?
Data Protection — This question tests Data Protection — SSE-S3.
What is the correct answer to this question?
The correct answer is: Use SSE-S3 — Option B (SSE-S3) is correct because it uses Amazon S3-managed keys that are automatically rotated by AWS every year, meeting the encryption and rotation requirements with zero operational overhead. Option A (SSE-C) is wrong because the customer manages the keys and must handle rotation manually or not at all. Option C (SSE-KMS) can use automatic key rotation, but it requires creating a KMS key and managing permissions, adding more overhead than SSE-S3. Option D (client-side encryption) requires the customer to implement encryption logic and key management, which adds significant operational complexity.
What should I do if I get this SCS-C02 question wrong?
Review sSE-S3, then practise related SCS-C02 questions on the same topic to reinforce the concept.
Are there clue words in this question I should notice?
Yes — watch for: "least". You want the option with minimum overhead, fewest steps, or lowest impact — not the most feature-rich or comprehensive answer.
What is the key concept behind this question?
SSE-S3
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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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