DEA-C01 Data Ingestion and Transformation Practice Question
A company is building a data lake on Amazon S3 and needs to ingest data from various on-premises sources. Which TWO AWS services can be used to transfer data securely over the internet?
⚠ Common exam trap
Many exam-takers confuse AWS DataSync with AWS Direct Connect, thinking both are required for secure transfers, but Direct Connect is a network service that bypasses the internet entirely, while DataSync is a data transfer service that works over the internet or Direct Connect.
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 designed to securely transfer large amounts of data from on-premises storage to AWS over the internet. It uses TLS encryption for data in transit and can automate and accelerate transfers by leveraging parallel multi-threading and incremental updates. This makes it a correct choice for securely ingesting data into an S3-based data lake.
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 Snowcone
Why it's wrong here
Snowcone is a physical device for offline transfer.
- ✓
AWS DataSync
Why this is correct
DataSync can transfer data over the internet.
- ✗
Amazon Kinesis Data Firehose
Why it's wrong here
Firehose is for streaming data, not file transfer.
- ✗
AWS Direct Connect
Why it's wrong here
Direct Connect is a dedicated network connection.
- ✓
AWS CLI
Why this is correct
AWS CLI can upload files to S3 over the internet.
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.