Quick Answer
The answer is Amazon Kinesis Data Streams and Kinesis Data Firehose. Kinesis Data Streams guarantees message ordering within a shard, which maps naturally to per-sensor ordering when you use a sensor ID as the partition key, while Kinesis Data Firehose provides a fully managed, serverless way to batch and archive that streaming data directly to Amazon S3 without writing custom code. On the AWS Certified Data Engineer Associate DEA-C01 exam, this pairing tests your understanding of real-time IoT data ingestion with ordering and S3 archival using Kinesis Data Streams and Firehose, a classic pattern for decoupling ingestion from storage. A common trap is choosing SQS, which offers best-effort ordering but no strict per-sensor guarantee, or Lambda alone, which cannot efficiently persist high-volume raw data to S3 for archival. Memory tip: think “Streams for order, Firehose for store.”
This DEA-C01 practice question tests your understanding of data ingestion and transformation. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. 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 designing a data ingestion pipeline for real-time IoT sensor data. The data volume peaks at 10,000 messages per second. The pipeline must process messages in order per sensor and persist raw data to Amazon S3 for archival. Which TWO services should be used together to meet these requirements? (Choose TWO.)
Amazon Kinesis Data Firehose
Delivers streaming data to S3.
Amazon Kinesis Data Streams
Provides ordered data per shard.
AWS Lambda
Why wrong: Can process but not persist to S3 efficiently.
Amazon AppFlow
Why wrong: Not for real-time IoT ingestion.
Amazon Simple Queue Service (Amazon SQS)
Why wrong: Does not guarantee order per sensor.
Answer choices
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
Options B and C are correct. Kinesis Data Streams captures data in order per shard (sensor), and Kinesis Data Firehose delivers to S3. Option A is wrong because SQS does not guarantee order per sensor. Option D is wrong because AppFlow is for SaaS integration. Option E is wrong because Lambda can process but not persist to S3 efficiently for archival.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
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
Delivers streaming data to S3.
Related concept
Read the scenario before looking for a memorised answer.
Amazon Kinesis Data Streams
Why this is correct
Provides ordered data per shard.
Related concept
Read the scenario before looking for a memorised answer.
AWS Lambda
Why it's wrong here
Can process but not persist to S3 efficiently.
Amazon AppFlow
Why it's wrong here
Not for real-time IoT ingestion.
Amazon Simple Queue Service (Amazon SQS)
Why it's wrong here
Does not guarantee order per sensor.
Common exam traps
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
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.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A media company stores terabytes of video archives that are accessed once a year for audit purposes. Moving these objects to a cold storage tier (Azure Archive, S3 Glacier, or Google Nearline) costs a fraction of hot storage. Questions like this test whether you understand storage tiers, access frequency tradeoffs, and retrieval latency requirements.
What to study next
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.
Data Ingestion and Transformation — study guide chapter
Learn the concepts, then practise the questions
Data Ingestion and Transformation practice questions
Targeted practice on this topic area only
All DEA-C01 questions
1,786 questions across all exam domains
AWS Certified Data Engineer Associate DEA-C01 study guide
Full concept coverage aligned to exam objectives
DEA-C01 practice test guide
How to use practice tests most effectively before exam day
Related practice questions
Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.
Practise DEA-C01 questions linked to Data Ingestion and Transformation.
Practise DEA-C01 questions linked to Data Operations and Support.
Practise DEA-C01 questions linked to Data Security and Governance.
Practise DEA-C01 questions linked to Data Store Management.
Practise DEA-C01 questions linked to DEA-C01 fundamentals.
Practise DEA-C01 questions linked to DEA-C01 scenario.
Practise DEA-C01 questions linked to DEA-C01 troubleshooting.
Practice this exam
Short sessions build daily habit. Longer sessions build exam-day stamina. Try a timed session to simulate real conditions.
FAQ
Data Ingestion and Transformation — This question tests Data Ingestion and Transformation — Read the scenario before looking for a memorised answer..
The correct answer is: Amazon Kinesis Data Firehose — Options B and C are correct. Kinesis Data Streams captures data in order per shard (sensor), and Kinesis Data Firehose delivers to S3. Option A is wrong because SQS does not guarantee order per sensor. Option D is wrong because AppFlow is for SaaS integration. Option E is wrong because Lambda can process but not persist to S3 efficiently for archival.
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.
Read the scenario before looking for a memorised answer.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
Same concept, more angles
These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. A company is designing a data ingestion pipeline for real-time sensor data from thousands of devices. The data must be processed with low latency and stored in Amazon S3. Which TWO services would be appropriate for this use case? (Choose TWO.)
mediumWhy D: Option A is correct for ingestion, Option C is correct for delivery to S3. Option B is for batch ETL, not real-time. Option D is for ad-hoc querying. Option E is for batch data transfer.
Variation 2. 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?
mediumWhy A: Options A and C are correct. Kinesis Data Streams ingests streaming data, and Kinesis Data Firehose can deliver data from the stream to S3. Option B is wrong because SQS is a message queue, not for real-time processing. Option D is wrong because Glue is batch. Option E is wrong because Direct Connect doesn't apply.
Keep practising
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.
Question Discussion
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
Sign in to join the discussion.