Quick Answer
The answer is enabling binary logging (binlog) on the MySQL source database, along with provisioning a replication instance and configuring Amazon S3 as the target endpoint. Binary logging is essential because AWS DMS reads the MySQL binlog to capture row-level changes in near real-time, allowing continuous replication without full table scans. The replication instance provides the compute and memory resources needed to process and transfer those changes, while S3 serves as the durable, scalable target for the ingested data. On the AWS Certified Data Engineer Associate DEA-C01 exam, this question tests your understanding of DMS CDC configuration requirements, often appearing as a multi-select trap where candidates mistakenly add S3 event notifications or VPC endpoints. A common memory tip is to remember the three pillars of DMS CDC: source logging, a middleman instance, and a target bucket—no extra services like Lambda or VPC endpoints are required for the core pipeline.
This DEA-C01 practice question tests your understanding of data ingestion and transformation. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. 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 needs to ingest data from a MySQL database into Amazon S3 using AWS DMS. The data changes frequently and the requirement is to capture changes in near real-time. Which THREE configurations are necessary?
Create a VPC endpoint for S3.
Why wrong: Not required for DMS to S3.
Create an S3 target endpoint in DMS.
Needed to specify the S3 bucket.
Enable binary logging (binlog) on the MySQL source database.
DMS uses binlog for CDC.
Create an AWS DMS replication instance.
Required for DMS tasks.
Configure an S3 event notification to trigger DMS.
Why wrong: DMS is pull-based; events not needed.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Create an S3 target endpoint in DMS.
Options A, B, and E are correct because the database must have binary logging enabled, DMS requires a replication instance, and the target endpoint should be S3. Option C is incorrect because S3 events are not needed for DMS. Option D is incorrect because a VPC endpoint is not required if using public S3.
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.
Create a VPC endpoint for S3.
Why it's wrong here
Not required for DMS to S3.
Create an S3 target endpoint in DMS.
Why this is correct
Needed to specify the S3 bucket.
Related concept
Read the scenario before looking for a memorised answer.
Enable binary logging (binlog) on the MySQL source database.
Why this is correct
DMS uses binlog for CDC.
Related concept
Read the scenario before looking for a memorised answer.
Create an AWS DMS replication instance.
Why this is correct
Required for DMS tasks.
Related concept
Read the scenario before looking for a memorised answer.
Configure an S3 event notification to trigger DMS.
Why it's wrong here
DMS is pull-based; events not needed.
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.
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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: Create an S3 target endpoint in DMS. — Options A, B, and E are correct because the database must have binary logging enabled, DMS requires a replication instance, and the target endpoint should be S3. Option C is incorrect because S3 events are not needed for DMS. Option D is incorrect because a VPC endpoint is not required if using public S3.
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.
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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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