DEA-C01 Data Ingestion and Transformation Practice Question
A company needs to ingest streaming data from thousands of IoT devices. The data must be processed in real-time and stored in Amazon S3. Which TWO services should be used together?
⚠ Common exam trap
Test-takers frequently confuse Kinesis Data Firehose with Kinesis Data Streams, thinking only one is needed, but the question requires both: Data Streams for real-time ingestion from devices and Data Firehose for automated delivery 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
✓
Amazon Kinesis Data Streams
Amazon Kinesis Data Streams is correct because it provides a scalable, real-time data ingestion service that can capture streaming data from thousands of IoT devices with low latency. Amazon Kinesis Data Firehose is correct because it can directly consume data from Kinesis Data Streams and automatically deliver it to Amazon S3 without requiring custom code for buffering, transformation, or loading.
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 Streams
Why this is correct
Provides real-time data ingestion.
- ✓
Amazon Kinesis Data Firehose
Why this is correct
Delivers streaming data to S3.
- ✗
AWS Glue
Why it's wrong here
Glue is for batch ETL.
- ✗
Amazon Simple Queue Service (SQS)
Why it's wrong here
SQS is for decoupling applications, not real-time streaming.
- ✗
AWS Direct Connect
Why it's wrong here
Direct Connect is a network connection, not a data ingestion 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 |
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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.