DEA-C01 Data Ingestion and Transformation Practice Question
A data pipeline uses Amazon Kinesis Data Streams with enhanced fan-out consumers. The team notices that one consumer falls behind and data accumulates. Which action will help this consumer catch up without affecting other consumers?
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
✓
Register an enhanced fan-out consumer for the slow consumer.
Registering a new enhanced fan-out consumer with its own dedicated read throughput allows it to catch up independently. Increasing shards affects all consumers, and increasing iterator age may help but doesn't increase throughput.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Increase the retention period of the stream.
Why it's wrong here
Longer retention allows more time to process but doesn't speed up consumption.
- ✓
Register an enhanced fan-out consumer for the slow consumer.
Why this is correct
Enhanced fan-out provides dedicated throughput per consumer, allowing the slow consumer to catch up without impacting others.
- ✗
Increase the number of shards in the stream.
Why it's wrong here
Adding shards increases overall throughput but affects all consumers, not just the slow one.
- ✗
Use a Lambda consumer instead of an enhanced fan-out consumer.
Why it's wrong here
Lambda consumers still share read throughput unless using enhanced fan-out.
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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.