- A
Enable DynamoDB Streams on the table and configure a Lambda function to write changes to S3.
Using DynamoDB Streams with a Lambda function that writes to S3 enables real-time replication with minimal impact on the DynamoDB table.
- B
Create a global secondary index on the table and export the index to S3.
Why wrong: Creating a global secondary index does not export data to S3; it is used to improve query performance.
- C
Use AWS Glue to scan the DynamoDB table and write results to S3 every hour.
Why wrong: Using AWS Glue to scan the DynamoDB table would consume read capacity units, potentially impacting the performance of the table.
- D
Use the DynamoDB Export to S3 feature to export the entire table daily.
Why wrong: Using the DynamoDB Export to S3 feature is a one-time or scheduled export, but it is not continuous and may not be suitable for near-real-time needs.
DEA-C01 Data Ingestion and Transformation Practice Question
This DEA-C01 practice question tests your understanding of data ingestion and transformation. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. 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 gaming company collects player event data from mobile devices. The data is sent to an Amazon API Gateway endpoint, which triggers an AWS Lambda function that writes the data to an Amazon DynamoDB table. The company wants to also store the data in Amazon S3 for historical analysis. The data volume is about 100 GB per day. The data engineer needs to design a solution to copy data from DynamoDB to S3 with minimal impact on the DynamoDB table. What should the data engineer do?
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
Enable DynamoDB Streams on the table and configure a Lambda function to write changes to S3.
Option A is correct. Using DynamoDB Streams with a Lambda function that writes to S3 enables real-time replication with minimal impact on the DynamoDB table. Option B is wrong because creating a global secondary index does not export data to S3; it is used to improve query performance. Option C is wrong because using AWS Glue to scan the DynamoDB table would consume read capacity units, potentially impacting performance. Option D is wrong because the DynamoDB Export to S3 feature is a one-time or scheduled export, not continuous, and may not be suitable for near-real-time needs.
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.
- ✓
Enable DynamoDB Streams on the table and configure a Lambda function to write changes to S3.
Why this is correct
Using DynamoDB Streams with a Lambda function that writes to S3 enables real-time replication with minimal impact on the DynamoDB table.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Create a global secondary index on the table and export the index to S3.
Why it's wrong here
Creating a global secondary index does not export data to S3; it is used to improve query performance.
- ✗
Use AWS Glue to scan the DynamoDB table and write results to S3 every hour.
Why it's wrong here
Using AWS Glue to scan the DynamoDB table would consume read capacity units, potentially impacting the performance of the table.
- ✗
Use the DynamoDB Export to S3 feature to export the entire table daily.
Why it's wrong here
Using the DynamoDB Export to S3 feature is a one-time or scheduled export, but it is not continuous and may not be suitable for near-real-time needs.
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 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.
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 |
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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Data Ingestion and Transformation — study guide chapter
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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: Enable DynamoDB Streams on the table and configure a Lambda function to write changes to S3. — Option A is correct. Using DynamoDB Streams with a Lambda function that writes to S3 enables real-time replication with minimal impact on the DynamoDB table. Option B is wrong because creating a global secondary index does not export data to S3; it is used to improve query performance. Option C is wrong because using AWS Glue to scan the DynamoDB table would consume read capacity units, potentially impacting performance. Option D is wrong because the DynamoDB Export to S3 feature is a one-time or scheduled export, not continuous, and may not be suitable for near-real-time needs.
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.
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 →
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Last reviewed: Jun 20, 2026
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