DEA-C01 Data Ingestion and Transformation Practice Question
A data engineer needs to ingest JSON files from an on-premises SFTP server into Amazon S3. The files are uploaded daily and each file is up to 500 MB. The solution must be serverless and minimize cost. Which service should the engineer use?
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 Transfer Family (SFTP) endpoint.
AWS Transfer Family provides a fully managed SFTP endpoint that directly integrates with Amazon S3, enabling file transfers without managing servers. Option A (Kinesis Data Firehose) is designed for streaming data, not file-based SFTP ingestion. Option B (AWS DataSync with an on-premises agent) requires installing and managing an agent, which adds operational overhead and is not fully serverless. Option C (S3 Transfer Acceleration) accelerates transfers to S3 but does not support ingesting from SFTP sources.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Amazon Kinesis Data Firehose.
Why it's wrong here
Designed for streaming data, not file-based SFTP transfers.
- ✗
AWS DataSync with an on-premises agent.
Why it's wrong here
DataSync requires an agent, which adds management overhead and cost.
- ✗
Amazon S3 Transfer Acceleration.
Why it's wrong here
Accelerates S3 uploads but does not provide SFTP capability.
- ✓
AWS Transfer Family (SFTP) endpoint.
Why this is correct
Fully managed SFTP service that writes directly to S3.
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.