- A
AWS Lambda with FTP library
Why wrong: Requires custom code and management, not fully managed.
- B
AWS DataSync
Why wrong: DataSync is for NFS/SMB, not FTP.
- C
AWS Transfer Family
Managed FTP/SFTP service that writes directly to S3.
- D
Amazon AppFlow
Why wrong: AppFlow is for SaaS applications like Salesforce, not FTP.
Question 808 of 1,786
DEA-C01 Data Ingestion and Transformation Practice Question
This DEA-C01 practice question tests your understanding of data ingestion and transformation. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A company needs to ingest CSV files from an FTP server into Amazon S3 daily. The files are typically 50 MB each, and the process should be fully managed with minimal operational overhead. Which AWS service should be used?
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
AWS Transfer Family is the correct choice because it provides a fully managed, serverless solution for transferring files to and from Amazon S3 using FTP, FTPS, or SFTP protocols. It eliminates the need to manage any FTP infrastructure, directly integrates with S3 as a destination, and handles the daily ingestion of 50 MB CSV files with minimal operational overhead, aligning perfectly with the requirement for a fully managed service.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
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 Lambda with FTP library
Why it's wrong here
Requires custom code and management, not fully managed.
- ✗
AWS DataSync
Why it's wrong here
DataSync is for NFS/SMB, not FTP.
- ✓
AWS Transfer Family
Why this is correct
Managed FTP/SFTP service that writes directly to S3.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Amazon AppFlow
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse AWS DataSync as a general-purpose file transfer service, but it does not support FTP protocol natively and requires an agent, making it unsuitable for a fully managed FTP-to-S3 ingestion without infrastructure management.
Detailed technical explanation
How to think about this question
AWS Transfer Family uses a fully managed endpoint that supports FTP, FTPS, and SFTP protocols, and it integrates with AWS Identity and Access Management (IAM) for authentication and authorization, allowing fine-grained access control to S3 buckets. Under the hood, it leverages a scalable, multi-AZ architecture that automatically handles TLS/SSL encryption for FTPS and SSH key-based authentication for SFTP, ensuring secure file transfers without any server maintenance. In a real-world scenario, if the FTP server requires passive mode or specific firewall rules, Transfer Family can be configured with an Elastic IP to whitelist, simplifying network setup.
KKey Concepts to Remember
- Read the scenario before looking for a memorised answer.
- Find the constraint that changes the correct option.
- Eliminate answers that are true in general but not in this case.
TExam Day Tips
- Watch for words such as best, first, most likely and least administrative effort.
- Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A media company stores terabytes of video archives that are accessed once a year for audit purposes. Moving these objects to a cold storage tier (Azure Archive, S3 Glacier, or Google Nearline) costs a fraction of hot storage. Questions like this test whether you understand storage tiers, access frequency tradeoffs, and retrieval latency requirements.
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 |
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
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Data Ingestion and Transformation — study guide chapter
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FAQ
Questions learners often ask
What does this DEA-C01 question test?
Data Ingestion and Transformation — This question tests Data Ingestion and Transformation — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: AWS Transfer Family — AWS Transfer Family is the correct choice because it provides a fully managed, serverless solution for transferring files to and from Amazon S3 using FTP, FTPS, or SFTP protocols. It eliminates the need to manage any FTP infrastructure, directly integrates with S3 as a destination, and handles the daily ingestion of 50 MB CSV files with minimal operational overhead, aligning perfectly with the requirement for a fully managed service.
What should I do if I get this DEA-C01 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Last reviewed: Jul 4, 2026
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