- A
Enable CloudTrail log file validation
Provides integrity verification to detect tampering.
- B
Enable S3 Object Lock on the S3 bucket
Prevents object deletion.
- C
Enable MFA Delete on the S3 bucket
Why wrong: MFA Delete requires root and is not automatically configured.
- D
Enable S3 Versioning on the S3 bucket
Why wrong: Versioning retains deleted objects but does not prevent deletion.
- E
Enable SSE-KMS encryption on the S3 bucket
Why wrong: Encryption does not prevent deletion.
Question 576 of 1,786
DEA-C01 Data Security and Governance Practice Question
This DEA-C01 practice question tests your understanding of data security and governance. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. 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 AWS CloudTrail to log all API calls. The security team wants to ensure that log files are tamper-proof and cannot be deleted. Which TWO actions should the data engineer take? (Choose TWO.)
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 CloudTrail log file validation
To ensure CloudTrail log files are tamper-proof and cannot be deleted, enable CloudTrail log file validation (option A) to verify integrity and detect tampering, and enable S3 Object Lock on the S3 bucket (option B) to prevent deletion or overwrites. Option C (MFA Delete) requires additional setup and is not automatically enforced by CloudTrail; it is not the primary mechanism for preventing deletion. Option D (S3 Versioning) alone does not prevent deletion; it preserves older versions but allows deletion of current versions. Option E (SSE-KMS) encrypts data but does not prevent deletion.
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.
- ✓
Enable CloudTrail log file validation
Why this is correct
Provides integrity verification to detect tampering.
Related concept
Read the scenario before looking for a memorised answer.
- ✓
Enable S3 Object Lock on the S3 bucket
Why this is correct
Prevents object deletion.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Enable MFA Delete on the S3 bucket
Why it's wrong here
MFA Delete requires root and is not automatically configured.
- ✗
Enable S3 Versioning on the S3 bucket
Why it's wrong here
Versioning retains deleted objects but does not prevent deletion.
- ✗
Enable SSE-KMS encryption on the S3 bucket
Why it's wrong here
Encryption does not prevent deletion.
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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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 — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Enable CloudTrail log file validation — To ensure CloudTrail log files are tamper-proof and cannot be deleted, enable CloudTrail log file validation (option A) to verify integrity and detect tampering, and enable S3 Object Lock on the S3 bucket (option B) to prevent deletion or overwrites. Option C (MFA Delete) requires additional setup and is not automatically enforced by CloudTrail; it is not the primary mechanism for preventing deletion. Option D (S3 Versioning) alone does not prevent deletion; it preserves older versions but allows deletion of current versions. Option E (SSE-KMS) encrypts data but does not prevent deletion.
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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