DEA-C01 Data Operations and Support Practice Question
Network Topology
A data engineer uses AWS CloudTrail to investigate a security incident. The engineer runs the command shown in the exhibit. What does the output indicate?
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
✓
A file was uploaded to the S3 bucket.
The CloudTrail event shows EventName as PutObject, which indicates an object was uploaded to S3. The resource name includes the bucket and the object key 'sales_2024-07-01.csv', confirming a single file upload. Option A is incorrect because the event is PutObject, not GetObject. Option B is incorrect because PutObject is an upload, not a deletion. Option C is incorrect because PutObject represents uploading a single object, not listing a batch of files.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
A file was downloaded from the S3 bucket.
Why it's wrong here
The event is PutObject, not GetObject.
- ✗
A file was deleted from the S3 bucket.
Why it's wrong here
The event is PutObject, not DeleteObject.
- ✗
A batch of files was listed from the S3 bucket.
Why it's wrong here
The event is for a single object.
- ✓
A file was uploaded to the S3 bucket.
Why this is correct
PutObject indicates an upload.
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.