- A
Launch the Redshift cluster without encryption and enable encryption later using AWS CloudHSM.
Why wrong: Redshift does not support enabling encryption on an existing cluster.
- B
Launch the Redshift cluster with encryption enabled using an S3-managed key.
Why wrong: S3-managed keys are not customer-managed.
- C
Launch the Redshift cluster with encryption enabled using a customer-managed KMS key with automatic annual rotation.
This meets both requirements.
- D
Launch the Redshift cluster with encryption enabled using a KMS key and configure the cluster to use an HSM for key storage.
Why wrong: HSM is not required for KMS encryption.
Question 355 of 1,730
DBS-C01 Database Security Practice Question
This DBS-C01 practice question tests your understanding of database security. 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. 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 uses Amazon Redshift for data warehousing. The security team requires that all data be encrypted at rest with a customer-managed key, and that the key be rotated every year. Which configuration meets these requirements?
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
✓
Launch the Redshift cluster with encryption enabled using a customer-managed KMS key with automatic annual rotation.
Amazon Redshift supports encryption at rest using a KMS key. You can enable automatic key rotation on a customer-managed KMS key. Option A is wrong because launching without encryption and enabling later using CloudHSM is not supported; Redshift does not support enabling encryption after launch without reloading data, and CloudHSM requires manual key rotation. Option B is wrong because Redshift does not use S3-managed keys for encryption; you must use a KMS key or HSM. Option C is correct because it meets the requirements. Option D is wrong because using an HSM for key storage does not provide automatic key rotation; you would need to rotate the key manually.
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.
- ✗
Launch the Redshift cluster without encryption and enable encryption later using AWS CloudHSM.
Why it's wrong here
Redshift does not support enabling encryption on an existing cluster.
- ✗
Launch the Redshift cluster with encryption enabled using an S3-managed key.
Why it's wrong here
S3-managed keys are not customer-managed.
- ✓
Launch the Redshift cluster with encryption enabled using a customer-managed KMS key with automatic annual rotation.
Why this is correct
This meets both requirements.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Launch the Redshift cluster with encryption enabled using a KMS key and configure the cluster to use an HSM for key storage.
Why it's wrong here
HSM is not required for KMS 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.
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.
Identify which DBS-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.
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FAQ
Questions learners often ask
What does this DBS-C01 question test?
Database Security — This question tests Database Security — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Launch the Redshift cluster with encryption enabled using a customer-managed KMS key with automatic annual rotation. — Amazon Redshift supports encryption at rest using a KMS key. You can enable automatic key rotation on a customer-managed KMS key. Option A is wrong because launching without encryption and enabling later using CloudHSM is not supported; Redshift does not support enabling encryption after launch without reloading data, and CloudHSM requires manual key rotation. Option B is wrong because Redshift does not use S3-managed keys for encryption; you must use a KMS key or HSM. Option C is correct because it meets the requirements. Option D is wrong because using an HSM for key storage does not provide automatic key rotation; you would need to rotate the key manually.
What should I do if I get this DBS-C01 question wrong?
Identify which DBS-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.
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 →
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Last reviewed: Jun 20, 2026
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