The answer is enabling S3 Versioning and AWS CloudTrail with data events for S3. S3 Versioning protects against accidental deletion by preserving all object versions, allowing you to restore deleted objects within the 30-day window by simply removing the delete marker. CloudTrail with data events captures every S3 API call—including GetObject, PutObject, and DeleteObject—and logs both successful and failed attempts, providing the full audit trail required for security compliance. On the AWS Certified Security Specialty SCS-C02 exam, this pairing tests your understanding that versioning handles data recovery while CloudTrail handles access auditing; a common trap is choosing S3 server access logs instead, but those lack failed-attempt details and are not real-time. Remember the mnemonic: “Versions reverse deletions, Trails trace rejections.”
SCS-C02 Data Protection 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. 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 is designing a data protection strategy for its Amazon S3 bucket that stores sensitive documents. The security team requires that all data be encrypted in transit and at rest, and that any accidental deletion of objects can be reversed within 30 days. Additionally, the company must be able to audit all access attempts to the bucket, including failed attempts. Which TWO actions should the company take to meet these requirements? (Choose two.)
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Enable AWS CloudTrail with data events for S3.
AWS CloudTrail with data events for S3 is correct because it captures all S3 API calls, including GetObject, PutObject, and DeleteObject, and records both successful and failed access attempts. This meets the auditing requirement for all access attempts, including failed ones, as CloudTrail logs the request details, error codes, and source IP addresses.
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 default encryption on the bucket using SSE-S3.
CloudTrail logs all API calls, including failed ones, for auditing.
Related concept
Read the scenario before looking for a memorised answer.
✓
Enable S3 Versioning on the bucket.
Why this is correct
Versioning allows recovery of deleted objects within the version retention period.
Related concept
Read the scenario before looking for a memorised answer.
✗
Enable S3 server access logs and send them to a separate bucket.
Why it's wrong here
Access logs do not capture failed attempts reliably; CloudTrail is preferred for auditing.
✗
Enable MFA Delete on the bucket.
Why it's wrong here
MFA Delete provides extra protection but does not allow reversal of deletion; versioning does.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse S3 server access logs (which log successful requests only) with CloudTrail data events (which log all API calls, including failures), leading them to select Option D instead of Option B.
Detailed technical explanation
How to think about this question
S3 Versioning works by maintaining multiple versions of an object; when an object is deleted, a delete marker is added, and the previous versions remain recoverable until a permanent deletion occurs. CloudTrail data events for S3 log every object-level API call, including failed attempts (e.g., AccessDenied errors), and these logs are delivered to an S3 bucket or CloudWatch Logs for analysis. In a real-world scenario, combining versioning with a lifecycle policy to expire noncurrent versions after 30 days ensures cost-effective recovery while meeting the reversal window.
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.
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
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.
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Data Protection — This question tests Data Protection — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Enable AWS CloudTrail with data events for S3. — AWS CloudTrail with data events for S3 is correct because it captures all S3 API calls, including GetObject, PutObject, and DeleteObject, and records both successful and failed access attempts. This meets the auditing requirement for all access attempts, including failed ones, as CloudTrail logs the request details, error codes, and source IP addresses.
What should I do if I get this SCS-C02 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Question Discussion
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