The answer is to enable S3 Versioning and MFA Delete on the bucket. This combination works because versioning preserves every object version, so even if a developer deletes the bucket or its objects, all previous versions remain recoverable, while MFA Delete adds a critical second authentication factor that prevents anyone—even an admin—from permanently deleting object versions or suspending versioning without a physical token. On the AWS Certified Security Specialty SCS-C02 exam, this scenario tests your understanding of balancing security controls with operational agility; a common trap is choosing bucket policies or IAM restrictions, which would hinder the developer’s ability to work, whereas versioning and MFA Delete protect against accidental deletion without blocking normal operations. For a memory tip, think “V-MFA” as in “Versioning Makes Files Accessible,” and remember that MFA Delete is the only way to lock down permanent deletion without sacrificing agility.
SCS-C02 Management and Security Governance Practice Question
This SCS-C02 practice question tests your understanding of management and security governance. 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 startup uses a single AWS account for development. The developer has full administrative access and accidentally deleted an S3 bucket containing critical data. The security team wants to prevent similar incidents without hindering agility. What is the MOST effective control?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Enable S3 Versioning and MFA Delete on the bucket.
Option D is correct because enabling S3 Versioning preserves all object versions, allowing recovery of deleted objects, while MFA Delete requires multi-factor authentication to permanently delete object versions or suspend versioning. This prevents accidental or unauthorized permanent deletions without hindering the developer's ability to create, read, and update objects, thus balancing security and agility.
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.
✗
Remove the developer's permissions and require all changes through IT.
Why it's wrong here
This hinders agility and is not a security best practice.
✗
Configure an S3 lifecycle policy to archive objects to S3 Glacier.
Why it's wrong here
Lifecycle policies do not prevent deletion.
✗
Use AWS CloudTrail to monitor deletions and alert the security team.
Why it's wrong here
Monitoring is reactive, not preventive.
✓
Enable S3 Versioning and MFA Delete on the bucket.
Why this is correct
Versioning allows recovery of deleted objects; MFA Delete adds protection.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often choose CloudTrail (Option C) because it provides monitoring and alerts, but they overlook that it is a detective control, not a preventive or recovery control, and thus cannot stop or reverse the deletion of critical data.
Detailed technical explanation
How to think about this question
S3 Versioning stores every object write as a separate version, so a DELETE request only adds a delete marker, making the object appear deleted but recoverable by removing the marker. MFA Delete, when enabled via the bucket's versioning configuration, requires a time-based one-time password (TOTP) from a hardware or virtual MFA device to permanently delete object versions or suspend versioning, adding a strong authentication layer that prevents accidental or unauthorized permanent deletions even with full administrative access.
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.
Management and Security Governance — This question tests Management and Security Governance — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Enable S3 Versioning and MFA Delete on the bucket. — Option D is correct because enabling S3 Versioning preserves all object versions, allowing recovery of deleted objects, while MFA Delete requires multi-factor authentication to permanently delete object versions or suspend versioning. This prevents accidental or unauthorized permanent deletions without hindering the developer's ability to create, read, and update objects, thus balancing security and agility.
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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