DEA-C01 Data Security and Governance Practice Question
A data engineer needs to audit data access events in Amazon S3. Which AWS service should be used to record and monitor API calls for S3 buckets?
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
✓
AWS CloudTrail
(AWS CloudTrail) is correct because it records API calls for S3 buckets, enabling auditing and monitoring of data access events. Option B (AWS Config) is incorrect as it tracks resource configuration changes, not API calls. Option C (Amazon Macie) is incorrect because it discovers sensitive data using machine learning. Option D (Amazon GuardDuty) is incorrect as it is a threat detection service.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
AWS CloudTrail
Why this is correct
CloudTrail records API calls for auditing.
- ✗
AWS Config
Why it's wrong here
Config tracks resource configuration, not API calls.
- ✗
Amazon Macie
Why it's wrong here
Macie discovers sensitive data, not API auditing.
- ✗
Amazon GuardDuty
Why it's wrong here
GuardDuty detects threats, not API auditing.
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.