- A
Asymmetric customer managed key
Why wrong: Asymmetric customer managed keys do not support automatic rotation, so they cannot meet the requirement.
- B
AWS managed key (aws/s3)
Why wrong: AWS managed keys (aws/s3) rotate automatically every 3 years, not annually, thus they do not satisfy the yearly rotation requirement.
- C
Custom key store backed by CloudHSM
Why wrong: Custom key stores backed by CloudHSM do not offer automatic key rotation, so they are not suitable.
- D
Customer managed key with automatic rotation enabled
Customer managed keys can have automatic rotation enabled with a yearly frequency, which aligns with the requirement.
Question 92 of 1,786
DEA-C01 Customer managed key rotation Practice Question
This DEA-C01 practice question tests your understanding of data security and governance. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. A key principle to apply: customer managed key rotation. 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 uses AWS KMS to encrypt sensitive data in S3. The security team requires that the KMS key must be rotated automatically every year. Which key type should be used?
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
✓
Customer managed key with automatic rotation enabled
Option D is correct because customer managed keys can be configured with automatic rotation every year, meeting the security team's requirement. Option B is incorrect because AWS managed keys (aws/s3) rotate automatically every 3 years, not annually. Option A is incorrect because asymmetric keys do not support automatic rotation. Option C is incorrect because custom key stores backed by CloudHSM do not offer automatic rotation.
Key principle: Customer managed key rotation
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Asymmetric customer managed key
Why it's wrong here
Asymmetric customer managed keys do not support automatic rotation, so they cannot meet the requirement.
- ✗
AWS managed key (aws/s3)
Why it's wrong here
AWS managed keys (aws/s3) rotate automatically every 3 years, not annually, thus they do not satisfy the yearly rotation requirement.
- ✗
Custom key store backed by CloudHSM
Why it's wrong here
Custom key stores backed by CloudHSM do not offer automatic key rotation, so they are not suitable.
- ✓
Customer managed key with automatic rotation enabled
Why this is correct
Customer managed keys can have automatic rotation enabled with a yearly frequency, which aligns with the requirement.
Related concept
Customer managed key rotation
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
- Customer managed key rotation
- AWS managed key rotation
- 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
Customer managed key rotation
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
Symmetric Encryption Algorithm Comparison
| Algorithm | Key Size | Block Size | Status | Notes |
|---|---|---|---|---|
| AES-128 | 128-bit | 128-bit | Current standard | NIST approved; WPA3, TLS |
| AES-256 | 256-bit | 128-bit | Current standard | Preferred for sensitive / govt data |
| 3DES | 112-bit effective | 64-bit | Deprecated (2023) | Replaced by AES |
| DES | 56-bit | 64-bit | Broken | Cracked in < 24 h; never deploy |
| ChaCha20 | 256-bit | Stream cipher | Current | TLS 1.3, WireGuard |
What to study next
Got this wrong? Here's your next step.
Review customer managed key rotation, then practise related DEA-C01 questions on the same topic to reinforce the concept.
- →
Data Security and Governance — study guide chapter
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FAQ
Questions learners often ask
What does this DEA-C01 question test?
Data Security and Governance — This question tests Data Security and Governance — Customer managed key rotation.
What is the correct answer to this question?
The correct answer is: Customer managed key with automatic rotation enabled — Option D is correct because customer managed keys can be configured with automatic rotation every year, meeting the security team's requirement. Option B is incorrect because AWS managed keys (aws/s3) rotate automatically every 3 years, not annually. Option A is incorrect because asymmetric keys do not support automatic rotation. Option C is incorrect because custom key stores backed by CloudHSM do not offer automatic rotation.
What should I do if I get this DEA-C01 question wrong?
Review customer managed key rotation, then practise related DEA-C01 questions on the same topic to reinforce the concept.
What is the key concept behind this question?
Customer managed key rotation
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Last reviewed: Jun 20, 2026
This DEA-C01 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 DEA-C01 exam.
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