DEA-C01 Data Ingestion and Transformation Practice Question
A company wants to ingest real-time clickstream data from a website into Amazon S3 with minimal code. The data should be delivered within 60 seconds of generation. Which AWS service should be used?
⚠ Common exam trap
The trap is confusing Kinesis Data Streams with Firehose; candidates may think Data Streams can directly deliver to S3, but it requires custom code, whereas Firehose is the managed solution for minimal code.
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 Firehose
Amazon Kinesis Data Firehose is a fully managed service that can ingest real-time streaming data and deliver it to Amazon S3 with minimal code. It can buffer data and deliver within 60 seconds, making it ideal for this use case. Firehose requires no custom code for delivery and can scale automatically.
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 this is correct
Amazon Kinesis Data Firehose buffers incoming records and delivers them to Amazon S3 automatically, with a configurable buffer interval as low as 60 seconds, satisfying the near-real-time constraint. It requires no custom consumer code, meeting the minimal-code requirement, unlike Kinesis Data Streams, which needs a separate delivery application.
- ✗
AWS Database Migration Service (DMS)
Why it's wrong here
DMS migrates databases and replicates ongoing changes between data stores; it does not ingest website clickstream events. It suits homogeneous or heterogeneous database migrations. Kinesis Data Firehose buffers and delivers streaming data to S3 within the 60-second window with minimal code.
- ✗
Amazon Kinesis Data Streams
Why it's wrong here
Kinesis Data Streams captures real-time data, but delivering it to S3 requires a consumer application you write and operate, contradicting minimal code. It suits custom stream processing. Kinesis Data Firehose handles the S3 delivery natively within 60 seconds.
- ✗
Amazon S3 Transfer Acceleration
Why it's wrong here
Transfer Acceleration speeds uploads over long distances using edge locations, but the source must still push data via API calls, adding code. It suits large bulk transfers, not continuous clickstream ingestion. Kinesis Data Firehose delivers streams to S3 within 60 seconds with minimal code.
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 and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed September 2026 · checked against the official Amazon Web Services exam blueprint
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.