DEA-C01 Data Ingestion and Transformation Practice Question
A company needs to ingest data from multiple on-premises databases into Amazon S3 for analytics. The databases include Oracle, MySQL, and PostgreSQL. The data must be continuously replicated with minimal latency. Which AWS service should be used?
⚠ Common exam trap
A common mix-up: candidates confuse Kinesis Data Streams as a general-purpose ingestion service for databases, but it lacks native CDC connectors for relational databases and is optimized for streaming data from applications, not for replicating transactional changes from databases to S3.
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 Database Migration Service (AWS DMS)
AWS DMS supports continuous replication (change data capture, CDC) from Oracle, MySQL, and PostgreSQL to S3 as a target, enabling near-real-time data ingestion with minimal latency. It handles schema conversion and can replicate ongoing changes without interrupting source databases, making it the correct choice for this use case.
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 Database Migration Service (AWS DMS)
Why this is correct
DMS can continuously replicate from multiple source databases to S3.
- ✗
Amazon Kinesis Data Streams
Why it's wrong here
Kinesis is for real-time data streams, not direct database replication.
- ✗
AWS Snowball
Why it's wrong here
Snowball is for large physical data transfers, not continuous replication.
- ✗
AWS Glue
Why it's wrong here
Glue is for batch ETL, not continuous replication.
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
Related to this question
About these practice questions
This DEA-C01 question is part of Courseiva's 1,711-question bank — original exam-style content with full explanations and wrong-answer analysis, never real exam questions or exam dumps. Learn why practice questions differ from exam dumps →
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.