- A
Export data using mysqldump and import into Aurora during a maintenance window.
Why wrong: mysqldump requires downtime and is not minimal downtime.
- B
Use AWS Schema Conversion Tool (SCT) to convert the schema to Aurora MySQL.
Why wrong: Schema Conversion Tool is not needed when migrating from MySQL to Aurora MySQL.
- C
Create an Amazon Aurora MySQL read replica from an Amazon RDS MySQL DB instance.
Creating an Aurora read replica from RDS MySQL allows near-zero downtime migration.
- D
Use AWS Database Migration Service (DMS) with change data capture (CDC) to migrate data.
Why wrong: DMS with CDC is a valid method, but the question expects a different combination.
- E
Enable binary logging (binlog) on the source RDS MySQL instance and set up replication to Aurora.
Binlog replication allows continuous data synchronization with minimal downtime.
Quick Answer
The correct actions are to create an Aurora read replica from an RDS MySQL snapshot and enable binary logging (binlog) on the source to set up native replication to Aurora. This two-step approach minimizes downtime by first establishing a baseline copy via snapshot, then using binlog-based replication to continuously synchronize changes from the source MySQL instance to the Aurora target, ensuring data consistency during the cutover. On the AWS Certified Database Specialty DBS-C01 exam, this scenario tests your understanding of low-downtime migration strategies for large databases, specifically the combination of snapshot seeding and native MySQL replication. A common trap is to overlook that binlog replication requires the source to have binary logging enabled and that the Aurora read replica must be created from the same snapshot to avoid schema mismatches. Remember the memory tip: “Snapshot for the base, binlog for the pace” — the snapshot provides the bulk copy, while binlog replication keeps the data in sync until you’re ready to switch.
DBS-C01 Deployment and Migration Practice Question
This DBS-C01 practice question tests your understanding of deployment and migration. 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 a 2 TB MySQL database to Amazon Aurora MySQL. They need to minimize downtime and ensure data consistency. Which TWO actions should they take? (Choose two.)
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue:
"minimum / minimize"Why it matters: Asks for the least resource use — fewest addresses, smallest subnet, lowest overhead. Eliminate over-provisioned options even if they would technically work.
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
Create an Amazon Aurora MySQL read replica from an Amazon RDS MySQL DB instance.
Options A and C are correct. A: Creating an Aurora read replica from an RDS MySQL snapshot is a common migration approach with minimal downtime. C: Enabling binlog replication from RDS MySQL to Aurora allows continuous replication. Option B (DMS with CDC) is also valid but not listed as correct? Actually DMS is also valid, but the question expects A and C. Option D (SCT) is for schema conversion, not needed for MySQL to Aurora. Option E (Snowball) is for large data, but not 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.
- ✗
Export data using mysqldump and import into Aurora during a maintenance window.
Why it's wrong here
mysqldump requires downtime and is not minimal downtime.
- ✗
Use AWS Schema Conversion Tool (SCT) to convert the schema to Aurora MySQL.
Why it's wrong here
Schema Conversion Tool is not needed when migrating from MySQL to Aurora MySQL.
- ✓
Create an Amazon Aurora MySQL read replica from an Amazon RDS MySQL DB instance.
Why this is correct
Creating an Aurora read replica from RDS MySQL allows near-zero downtime migration.
Clue confirmation
The clue word "minimum / minimize" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Use AWS Database Migration Service (DMS) with change data capture (CDC) to migrate data.
Why it's wrong here
DMS with CDC is a valid method, but the question expects a different combination.
- ✓
Enable binary logging (binlog) on the source RDS MySQL instance and set up replication to Aurora.
Why this is correct
Binlog replication allows continuous data synchronization with minimal downtime.
Clue confirmation
The clue word "minimum / minimize" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
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
How to think about this question
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.
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.
- Use explanations to understand the rule behind the answer.
TExam Day Tips
- Underline the problem statement mentally.
- 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 DBS-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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Deployment and Migration — study guide chapter
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FAQ
Questions learners often ask
What does this DBS-C01 question test?
Deployment and Migration — This question tests Deployment and Migration — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Create an Amazon Aurora MySQL read replica from an Amazon RDS MySQL DB instance. — Options A and C are correct. A: Creating an Aurora read replica from an RDS MySQL snapshot is a common migration approach with minimal downtime. C: Enabling binlog replication from RDS MySQL to Aurora allows continuous replication. Option B (DMS with CDC) is also valid but not listed as correct? Actually DMS is also valid, but the question expects A and C. Option D (SCT) is for schema conversion, not needed for MySQL to Aurora. Option E (Snowball) is for large data, but not minimal downtime.
What should I do if I get this DBS-C01 question wrong?
Identify which DBS-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.
Are there clue words in this question I should notice?
Yes — watch for: "minimum / minimize". Asks for the least resource use — fewest addresses, smallest subnet, lowest overhead. Eliminate over-provisioned options even if they would technically work.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 20, 2026
This DBS-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 DBS-C01 exam.
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