Quick Answer
The answer is to use a full-load task with ongoing replication (CDC) because AWS DMS Change Data Capture (CDC) captures incremental changes from the on-premises Oracle database and continuously replicates them to Amazon S3 with minimal latency. This configuration first performs an initial full copy of the existing data, then seamlessly transitions to reading the database transaction logs to apply ongoing changes in near real-time, ensuring the S3 target stays current. On the AWS Certified Data Engineer Associate DEA-C01 exam, this question tests your understanding of DMS task types and the distinction between one-time migration and continuous replication; a common trap is confusing a full-load-only task (which stops after the initial copy) with the full-load-plus-CDC option. Remember that CDC is essential for low-latency, ongoing replication, while services like SCT handle schema conversion and Kinesis is for streaming, not direct database replication. Memory tip: think “Full Load + CDC = Continuous Sync” to avoid picking the incomplete full-load-only option.
This DEA-C01 practice question tests your understanding of data operations and support. 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 data engineer is designing a solution to move data from an on-premises Oracle database to Amazon S3 using AWS DMS. The engineer needs to ensure that data changes are replicated continuously with minimal latency. Which DMS configuration is most appropriate?
Use AWS SCT to convert the schema and then use DMS for full load
Why wrong: SCT is not for replication.
Use a full-load task with ongoing replication (CDC)
CDC captures changes continuously after initial load.
Use a full-load task that runs daily
Why wrong: Full load is not continuous and has high latency.
Use Kinesis Data Streams to capture changes and write to S3
Why wrong: Kinesis is not designed for direct database replication.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Use a full-load task with ongoing replication (CDC)
Option B is correct because DMS with CDC (change data capture) captures ongoing changes with low latency. Option A is wrong because full load only does initial copy. Option C is wrong because SCT is for schema conversion, not data movement. Option D is wrong because Kinesis is for streaming, but DMS is the right service for database replication.
Key principle: ACLs process entries top to bottom and stop at the first match. Entry order and interface direction matter as much as the permit or deny statement.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
Use AWS SCT to convert the schema and then use DMS for full load
Why it's wrong here
SCT is not for replication.
Use a full-load task with ongoing replication (CDC)
Why this is correct
CDC captures changes continuously after initial load.
Related concept
Standard ACLs match source addresses.
Use a full-load task that runs daily
Why it's wrong here
Full load is not continuous and has high latency.
Use Kinesis Data Streams to capture changes and write to S3
Why it's wrong here
Kinesis is not designed for direct database replication.
Common exam traps
ACLs are processed top to bottom. The first matching entry wins, and an implicit deny usually exists at the end.
Detailed technical explanation
ACL questions test precision: source, destination, protocol, port and direction. A generally correct ACL can still fail if it is applied on the wrong interface or in the wrong direction.
Key takeaway
ACLs process entries top to bottom and stop at the first match. Entry order and interface direction matter as much as the permit or deny statement.
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
Review ACL processing order, placement rules (standard near destination, extended near source), and inbound vs outbound direction. Study wildcard masks and implicit deny. Then practise related DEA-C01 ACL questions on filtering logic and placement.
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FAQ
Data Operations and Support — This question tests Data Operations and Support — Standard ACLs match source addresses..
The correct answer is: Use a full-load task with ongoing replication (CDC) — Option B is correct because DMS with CDC (change data capture) captures ongoing changes with low latency. Option A is wrong because full load only does initial copy. Option C is wrong because SCT is for schema conversion, not data movement. Option D is wrong because Kinesis is for streaming, but DMS is the right service for database replication.
Review ACL processing order, placement rules (standard near destination, extended near source), and inbound vs outbound direction. Study wildcard masks and implicit deny. Then practise related DEA-C01 ACL questions on filtering logic and placement.
Standard ACLs match source addresses.
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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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