- A
Use S3 Transfer Acceleration and enable versioning
Why wrong: These features do not protect PII.
- B
Enable S3 server-side encryption with AWS KMS
Why wrong: Encryption alone does not prevent unauthorized access.
- C
Use Amazon CloudWatch Logs to monitor access and enable MFA Delete
Why wrong: Monitoring does not prevent data exposure.
- D
Enable S3 Block Public Access and use Amazon Macie to discover and classify PII
Block Public Access prevents exposure; Macie identifies and alerts on PII.
Question 1,676 of 1,786
DEA-C01 Data Operations and Support Practice Question
This DEA-C01 practice question tests your understanding of data operations and support. 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 data engineer is designing a data lake on Amazon S3. The data includes sensitive personally identifiable information (PII). Which combination of services would provide the most comprehensive data protection?
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
✓
Enable S3 Block Public Access and use Amazon Macie to discover and classify PII
Option D is correct because combining S3 Block Public Access prevents unintended public exposure, and Amazon Macie automatically discovers, classifies, and protects sensitive PII. Option A is incorrect because S3 Transfer Acceleration speeds up uploads but does not protect data; versioning helps with accidental deletion but not confidentiality or access control. Option B is incorrect because SSE-KMS only provides encryption at rest, not comprehensive protection against misconfigurations or authorized access to PII. Option C is incorrect because CloudWatch Logs monitor and audit access but do not prevent exposure or classify data; MFA Delete protects against accidental deletion but not against data leaks.
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.
- ✗
Use S3 Transfer Acceleration and enable versioning
Why it's wrong here
These features do not protect PII.
- ✗
Enable S3 server-side encryption with AWS KMS
Why it's wrong here
Encryption alone does not prevent unauthorized access.
- ✗
Use Amazon CloudWatch Logs to monitor access and enable MFA Delete
Why it's wrong here
Monitoring does not prevent data exposure.
- ✓
Enable S3 Block Public Access and use Amazon Macie to discover and classify PII
Why this is correct
Block Public Access prevents exposure; Macie identifies and alerts on PII.
Related concept
Read the scenario before looking for a memorised answer.
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 DEA-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 DEA-C01 question test?
Data Operations and Support — This question tests Data Operations and Support — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Enable S3 Block Public Access and use Amazon Macie to discover and classify PII — Option D is correct because combining S3 Block Public Access prevents unintended public exposure, and Amazon Macie automatically discovers, classifies, and protects sensitive PII. Option A is incorrect because S3 Transfer Acceleration speeds up uploads but does not protect data; versioning helps with accidental deletion but not confidentiality or access control. Option B is incorrect because SSE-KMS only provides encryption at rest, not comprehensive protection against misconfigurations or authorized access to PII. Option C is incorrect because CloudWatch Logs monitor and audit access but do not prevent exposure or classify data; MFA Delete protects against accidental deletion but not against data leaks.
What should I do if I get this DEA-C01 question wrong?
Identify which DEA-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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