- A
Use Kinesis Data Streams as the ingestion point. Use Kinesis Data Firehose to read from the stream, convert to Parquet, and write to S3. Use a Lambda function to send data to Kinesis Data Analytics.
Why wrong: Lambda is unnecessary; Kinesis Data Analytics can read directly from the stream.
- B
Use Kinesis Data Streams as the ingestion point. Use a Lambda function to read from the stream, write to S3, and send data to Kinesis Data Analytics.
Why wrong: Lambda adds unnecessary cost and complexity.
- C
Use two Kinesis Data Streams: one for S3 delivery and one for Kinesis Data Analytics.
Why wrong: Two streams increase cost and management overhead.
- D
Use Kinesis Data Streams as the ingestion point. Use Kinesis Data Firehose to read from the stream and write to S3. Use Kinesis Data Analytics to read directly from the same stream.
Firehose can read from the stream and write to S3; Kinesis Data Analytics can read from the same stream for real-time analytics.
Quick Answer
The answer is to use Kinesis Data Streams as the ingestion point, with Kinesis Data Firehose reading from that stream to archive raw data to S3 and Kinesis Data Analytics reading directly from the same stream for real-time analytics. This architecture is most efficient because Firehose can seamlessly pull records from a single Kinesis Data Stream and batch them to S3 in near real-time without requiring custom code, while Kinesis Data Analytics consumes the same stream concurrently for live processing, eliminating the need for duplicate data pipelines. On the AWS Certified Data Engineer Associate DEA-C01 exam, this scenario tests your understanding of how to integrate streaming services without unnecessary complexity—common traps include adding Lambda for simple S3 delivery or creating two separate streams, which wastes resources and increases latency. Remember the key principle: one stream, two consumers—Firehose for archival, Analytics for real-time. A useful memory tip is “Firehose files, Analytics analyzes,” reinforcing that both can attach to the same stream for their distinct purposes.
DEA-C01 Data Ingestion and Transformation Practice Question
This DEA-C01 practice question tests your understanding of data ingestion and transformation. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A company is ingesting streaming data from social media feeds using Amazon Kinesis Data Streams. The data volume peaks at 10,000 records per second, and each record is up to 1 KB. The company needs to archive the raw data in Amazon S3 in near real-time and also make it available for real-time analytics using Amazon Kinesis Data Analytics. What is the MOST efficient architecture to meet these requirements?
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
Use Kinesis Data Streams as the ingestion point. Use Kinesis Data Firehose to read from the stream and write to S3. Use Kinesis Data Analytics to read directly from the same stream.
Option D is correct because Kinesis Data Firehose can read from a Kinesis Data Stream and write to S3, while Kinesis Data Analytics can read from the same stream for real-time analytics. Option A is incorrect because Lambda adds cost and complexity. Option B is incorrect because two separate streams are wasteful. Option C is incorrect because Firehose cannot convert to Parquet without a schema; also Lambda is avoidable.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Use Kinesis Data Streams as the ingestion point. Use Kinesis Data Firehose to read from the stream, convert to Parquet, and write to S3. Use a Lambda function to send data to Kinesis Data Analytics.
Why it's wrong here
Lambda is unnecessary; Kinesis Data Analytics can read directly from the stream.
- ✗
Use Kinesis Data Streams as the ingestion point. Use a Lambda function to read from the stream, write to S3, and send data to Kinesis Data Analytics.
Why it's wrong here
Lambda adds unnecessary cost and complexity.
- ✗
Use two Kinesis Data Streams: one for S3 delivery and one for Kinesis Data Analytics.
Why it's wrong here
Two streams increase cost and management overhead.
- ✓
Use Kinesis Data Streams as the ingestion point. Use Kinesis Data Firehose to read from the stream and write to S3. Use Kinesis Data Analytics to read directly from the same stream.
Why this is correct
Firehose can read from the stream and write to S3; Kinesis Data Analytics can read from the same stream for real-time analytics.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Detailed technical explanation
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
KKey Concepts to Remember
- Read the scenario before looking for a memorised answer.
- Find the constraint that changes the correct option.
- Eliminate answers that are true in general but not in this case.
- Use explanations to understand the rule behind the answer.
TExam Day Tips
- Underline the problem statement mentally.
- Watch for words such as best, first, most likely and least administrative effort.
- Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A startup's cloud architect reviews their monthly bill and notices costs are higher than expected for a long-running batch job. Switching from on-demand instances to Reserved Instances — or using Spot/Preemptible VMs — can reduce compute costs by up to 72 %. Questions like this test whether you understand the tradeoffs between commitment, flexibility, and cost across cloud pricing models.
What to study next
Got this wrong? Here's your next step.
Identify which DEA-C01 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
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FAQ
Questions learners often ask
What does this DEA-C01 question test?
Data Ingestion and Transformation — This question tests Data Ingestion and Transformation — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Use Kinesis Data Streams as the ingestion point. Use Kinesis Data Firehose to read from the stream and write to S3. Use Kinesis Data Analytics to read directly from the same stream. — Option D is correct because Kinesis Data Firehose can read from a Kinesis Data Stream and write to S3, while Kinesis Data Analytics can read from the same stream for real-time analytics. Option A is incorrect because Lambda adds cost and complexity. Option B is incorrect because two separate streams are wasteful. Option C is incorrect because Firehose cannot convert to Parquet without a schema; also Lambda is avoidable.
What should I do if I get this DEA-C01 question wrong?
Identify which DEA-C01 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 20, 2026
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.
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