- A
Set up a VPN or Direct Connect between on-premises and AWS
Secure connectivity is essential.
- B
Disable archiving on the source database
Why wrong: Archiving is needed for change data capture.
- C
Use AWS Schema Conversion Tool (SCT) to convert the schema
SCT helps convert Oracle schema to RDS.
- D
Perform a full load migration without change data capture
Why wrong: Full load requires downtime.
- E
Use AWS Database Migration Service (DMS) for ongoing replication
Ongoing replication minimizes downtime.
Question 539 of 1,786
DEA-C01 Data Store Management Practice Question
This DEA-C01 practice question tests your understanding of data store management. 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.
Which THREE steps are recommended for migrating an on-premises Oracle database to Amazon RDS for Oracle with minimal downtime? (Choose 3.)
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
✓
Set up a VPN or Direct Connect between on-premises and AWS
Option A is correct because establishing a VPN or Direct Connect provides a secure, private, and low-latency network connection between the on-premises environment and AWS. This is essential for minimizing downtime during a migration, as it ensures reliable and fast data transfer for both the initial full load and ongoing replication, reducing the risk of network interruptions that could extend the migration window.
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.
- ✓
Set up a VPN or Direct Connect between on-premises and AWS
Why this is correct
Secure connectivity is essential.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Disable archiving on the source database
Why it's wrong here
Archiving is needed for change data capture.
- ✓
Use AWS Schema Conversion Tool (SCT) to convert the schema
Why this is correct
SCT helps convert Oracle schema to RDS.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Perform a full load migration without change data capture
Why it's wrong here
Full load requires downtime.
- ✓
Use AWS Database Migration Service (DMS) for ongoing replication
Why this is correct
Ongoing replication minimizes downtime.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often think disabling archiving simplifies the migration, but they miss that CDC requires archived logs for minimal downtime, and they may also assume a full load alone is sufficient without realizing it forces a longer outage to ensure data consistency.
Detailed technical explanation
How to think about this question
AWS DMS uses Oracle's LogMiner or binary reader to read archived redo logs for CDC, which requires the database to be in ARCHIVELOG mode and have supplemental logging enabled. The initial full load is performed with a snapshot of the source, and then DMS applies ongoing changes from the redo logs to keep the target in sync. In a real-world scenario, you would also need to ensure the source database has sufficient disk space for archived logs and that the network bandwidth (via Direct Connect or VPN) can handle the log stream without lag.
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.
TExam Day Tips
- 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 healthcare organisation deploys an application with a public-facing web tier and a private database tier. The database subnet has no public IP and only accepts connections from the web tier's security group. Questions like this test whether you can design cloud network isolation using VNets/VPCs, subnets, and security group rules.
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
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FAQ
Questions learners often ask
What does this DEA-C01 question test?
Data Store Management — This question tests Data Store Management — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Set up a VPN or Direct Connect between on-premises and AWS — Option A is correct because establishing a VPN or Direct Connect provides a secure, private, and low-latency network connection between the on-premises environment and AWS. This is essential for minimizing downtime during a migration, as it ensures reliable and fast data transfer for both the initial full load and ongoing replication, reducing the risk of network interruptions that could extend the migration window.
What should I do if I get this DEA-C01 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Last reviewed: Jul 4, 2026
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