DEA-C01 Data Ingestion and Transformation Practice Question
A company wants to ingest streaming data from thousands of IoT devices into AWS for real-time processing. Each device sends JSON payloads of about 2 KB at a rate of 1 message per second. The data must be processed with a durable, ordered stream per device. Which service should the company use as the ingestion layer?
⚠ Common exam trap
It's easy for candidates to confuse Kinesis Data Streams with Kinesis Data Firehose, assuming Firehose can handle real-time ordered streams, but Firehose does not provide per-record ordering or real-time consumer access; it is a delivery stream, not a stream processing layer.
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 the correct choice because it provides durable, ordered stream processing per shard, which can be partitioned by device ID to maintain message order for each device. It supports real-time ingestion from thousands of IoT devices at 2 KB per message per second, with a retention period of up to 365 days and the ability to reprocess data via multiple consumers.
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 Simple Queue Service (Amazon SQS) with a FIFO queue.
Why it's wrong here
FIFO queues have limited throughput (300 TPS).
- ✓
Amazon Kinesis Data Streams.
Why this is correct
Provides ordered, durable streaming.
- ✗
Amazon Simple Notification Service (Amazon SNS) with a Lambda subscriber.
Why it's wrong here
Does not guarantee order.
- ✗
Amazon Kinesis Data Firehose with Direct Put.
Why it's wrong here
Does not guarantee ordering.
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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.