- A
Perform a test migration to validate the process.
Testing ensures the migration works correctly before the actual cutover.
- B
Enable Multi-AZ on the Aurora cluster before migration.
Why wrong: Multi-AZ is for high availability, not a prerequisite for migration.
- C
Update the application connection string to point to the Aurora cluster after cutover.
After cutover, applications must connect to the new database.
- D
Use AWS DMS to perform a full load and then ongoing replication.
Ongoing replication keeps the target in sync with minimal downtime.
- E
Disable automated backups on the Aurora cluster to improve performance.
Why wrong: Backups are important for data safety and should not be disabled.
Question 289 of 1,730
DBS-C01 Management and Operations Practice Question
This DBS-C01 practice question tests your understanding of management and operations. 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.
A company is migrating its on-premises PostgreSQL database to Amazon Aurora PostgreSQL. The migration must have minimal downtime. Which THREE steps should be taken as part of the migration plan? (Select THREE.)
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
✓
Perform a test migration to validate the process.
Option A is correct because performing a test migration validates the entire process, including schema compatibility, data integrity, and replication lag, before the actual cutover. This reduces the risk of unexpected failures during the live migration, which is critical for achieving minimal downtime.
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.
- ✓
Perform a test migration to validate the process.
Why this is correct
Testing ensures the migration works correctly before the actual cutover.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Enable Multi-AZ on the Aurora cluster before migration.
Why it's wrong here
Multi-AZ is for high availability, not a prerequisite for migration.
- ✓
Update the application connection string to point to the Aurora cluster after cutover.
Why this is correct
After cutover, applications must connect to the new database.
Related concept
Read the scenario before looking for a memorised answer.
- ✓
Use AWS DMS to perform a full load and then ongoing replication.
Why this is correct
Ongoing replication keeps the target in sync with minimal downtime.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Disable automated backups on the Aurora cluster to improve performance.
Why it's wrong here
Backups are important for data safety and should not be disabled.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates may confuse enabling Multi-AZ as a migration requirement, when it is actually a high-availability feature unrelated to the migration process itself.
Detailed technical explanation
How to think about this question
AWS DMS (Option D) supports ongoing replication using change data capture (CDC) from the source PostgreSQL database, which allows near-zero downtime by continuously applying changes after the full load. The application connection string update (Option C) is the final step after cutover to redirect traffic to the Aurora cluster, ensuring minimal disruption.
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 cloud solutions architect for a retail company is evaluating services for a new workload. The correct answer here reflects best practice for the specific scenario described — not a general cloud recommendation. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Cloud exam questions reward reading the constraint carefully: the same technology can be right or wrong depending on the use case.
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 DBS-C01 question test?
Management and Operations — This question tests Management and Operations — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Perform a test migration to validate the process. — Option A is correct because performing a test migration validates the entire process, including schema compatibility, data integrity, and replication lag, before the actual cutover. This reduces the risk of unexpected failures during the live migration, which is critical for achieving minimal downtime.
What should I do if I get this DBS-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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