- A
AWS Glue
Why wrong: Can be used but DMS is simpler for this use case.
- B
Amazon Kinesis Data Streams
Why wrong: Not designed for database migration.
- C
Amazon Athena
Why wrong: Query service, not data ingestion.
- D
Amazon S3
Target for the ingested data.
- E
AWS Database Migration Service (DMS)
Handles full load and CDC from Oracle.
Question 1,445 of 1,786
DMS Oracle to S3 Continuous Replication
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 company needs to ingest data from an on-premises Oracle database into Amazon S3 for analytics. The data volume is about 1 TB initially, with daily incremental updates of about 10 GB. Which TWO services can be combined to achieve this with minimal custom code?
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
✓
Amazon S3
The correct combination is AWS DMS (Database Migration Service) for migration and Amazon S3 as the target. DMS can perform full load and ongoing replication with minimal custom code, making it suitable for the initial 1 TB load and daily 10 GB increments. AWS Glue (option A) could be used but often requires more custom code for change data capture (CDC) compared to DMS. Amazon Kinesis Data Streams (option B) is designed for real-time streaming data, not database migration. Amazon Athena (option C) is a query service, not a data movement service. Therefore, the correct answers are D (Amazon S3) and E (AWS DMS).
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
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
AWS Glue
Why it's wrong here
Can be used but DMS is simpler for this use case.
- ✗
Amazon Kinesis Data Streams
Why it's wrong here
Not designed for database migration.
- ✗
Amazon Athena
Why it's wrong here
Query service, not data ingestion.
- ✓
Amazon S3
Why this is correct
Target for the ingested data.
Related concept
Standard ACLs match source addresses.
- ✓
AWS Database Migration Service (DMS)
Why this is correct
Handles full load and CDC from Oracle.
Related concept
Standard ACLs match source addresses.
Common exam traps
Common exam trap: ACLs stop at the first match
ACLs are processed top to bottom. The first matching entry wins, and an implicit deny usually exists at the end.
Detailed technical explanation
How to think about this question
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.
KKey Concepts to Remember
- Standard ACLs match source addresses.
- Extended ACLs can match source, destination, protocol and ports.
- The first matching ACL entry is used.
- There is usually an implicit deny at the end.
TExam Day Tips
- Check inbound versus outbound direction.
- Read the ACL from top to bottom.
- Look for a broader permit or deny above the intended line.
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
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.
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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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 — Standard ACLs match source addresses..
What is the correct answer to this question?
The correct answer is: Amazon S3 — The correct combination is AWS DMS (Database Migration Service) for migration and Amazon S3 as the target. DMS can perform full load and ongoing replication with minimal custom code, making it suitable for the initial 1 TB load and daily 10 GB increments. AWS Glue (option A) could be used but often requires more custom code for change data capture (CDC) compared to DMS. Amazon Kinesis Data Streams (option B) is designed for real-time streaming data, not database migration. Amazon Athena (option C) is a query service, not a data movement service. Therefore, the correct answers are D (Amazon S3) and E (AWS DMS).
What should I do if I get this DEA-C01 question wrong?
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.
What is the key concept behind this question?
Standard ACLs match source addresses.
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
1 more ways this is tested on DEA-C01
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 needs to ingest data from an on-premises Oracle database into Amazon S3 on a daily basis. The data volume is about 100 GB per day. Which AWS service is BEST suited for this task?
easy- A.Use AWS DataSync to copy the database files to S3.
- B.Use Amazon Kinesis Data Firehose with a database connector.
- ✓ C.Use AWS Database Migration Service (DMS) to replicate data to S3.
- D.Use AWS Glue to extract data from Oracle and write to S3.
Why C: Option C is correct because AWS Database Migration Service (DMS) can continuously replicate data from Oracle to S3, and it supports full load and change data capture (CDC). Option A (AWS DataSync) is for file-based transfers, not database replication. Option B (Amazon Kinesis Data Firehose) is for streaming data, not database pull. Option D (AWS Glue) is for ETL but does not natively support continuous CDC from Oracle.
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Last reviewed: Jun 20, 2026
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