DEA-C01 Data Store Management Practice Question
A company has an Amazon S3 bucket with versioning enabled. They want to automatically delete noncurrent versions of objects after 30 days. Which lifecycle rule action should be used?
⚠ Common exam trap
A common mix-up: candidates confuse NoncurrentVersionExpiration with Expiration, as candidates often mistakenly apply the standard Expiration action to delete old versions, not realizing it only affects the current version.
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
✓
NoncurrentVersionExpiration
The NoncurrentVersionExpiration lifecycle action is specifically designed to remove noncurrent object versions after a specified number of days. Since versioning is enabled and the requirement is to delete noncurrent versions after 30 days, this action directly meets the goal without affecting current versions or other lifecycle aspects.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
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Expiration
Why it's wrong here
Expiration applies to current object versions, removing them and promoting noncurrent versions rather than deleting the noncurrent ones. It is tempting because it is the standard deletion action, and would be correct when current versions themselves should be deleted after a defined period.
- ✓
NoncurrentVersionExpiration
Why this is correct
NoncurrentVersionExpiration targets noncurrent object versions specifically, permanently deleting them once the specified retention period elapses. This satisfies the stem's 30-day constraint on noncurrent versions, unlike CurrentVersionExpiration, which acts only on the active version. Versioning must be enabled, which the scenario confirms.
- ✗
NoncurrentVersionTransition
Why it's wrong here
NoncurrentVersionTransition moves noncurrent versions to another storage class; it does not delete them. It is tempting because it targets noncurrent versions specifically, and would be correct when the requirement is to archive old versions to cheaper storage rather than remove them after 30 days.
- ✗
AbortIncompleteMultipartUpload
Why it's wrong here
AbortIncompleteMultipartUpload terminates multipart uploads that never completed, leaving noncurrent object versions untouched. It is tempting because it deletes unfinished data automatically, and would be correct when the requirement is to clean up stalled uploads rather than expire old versions.
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 |
Go deeper
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This DEA-C01 practice question is part of Courseiva's free Amazon Web Services certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the DEA-C01 exam.