DEA-C01 Data Ingestion and Transformation Practice Question
A data engineer needs to transfer 50 TB of data from an on-premises data center to Amazon S3 over a 1 Gbps network. The transfer must be completed within one week. Which TWO AWS services can be used for this task? (Choose TWO.)
⚠ Common exam trap
A common mix-up: candidates assume S3 Transfer Acceleration can accelerate any transfer, but it only optimizes the last-mile upload to S3 and does not address the bottleneck of moving data from on-premises storage to the internet, nor does it provide a mechanism to pull data from on-premises systems.
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 DataSync
AWS DataSync is correct because it is designed to efficiently transfer large datasets over the network using a purpose-built agent that parallelizes data transfer and optimizes network utilization. With a 1 Gbps link, DataSync can transfer 50 TB within a week by leveraging its built-in compression, encryption, and incremental transfer capabilities, making it suitable for this time-constrained migration.
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 Glue
Why it's wrong here
Glue is for ETL, not for bulk data transfer.
- ✓
AWS DataSync
Why this is correct
Designed for network-based bulk data transfer.
- ✓
AWS Snowball
Why this is correct
An offline device that can transfer large amounts of data.
- ✗
Amazon S3 Transfer Acceleration
Why it's wrong here
May not guarantee 1 week transfer for 50 TB over 1 Gbps.
- ✗
AWS Direct Connect
Why it's wrong here
It is a dedicated network connection, not a data transfer service.
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.