- A
Use AWS DMS with ongoing replication
Minimizes downtime with CDC.
- B
Use AWS Schema Conversion Tool to convert the schema
Why wrong: Not needed for same engine migration.
- C
Use AWS Snowball Edge to transfer backup files
Why wrong: Offline transfer causes downtime.
- D
Enable binary logging on the source database for change data capture
Required for DMS CDC.
- E
Use mysqldump to export data
Why wrong: Causes downtime.
Question 322 of 1,730
DBS-C01 Deployment and Migration Practice Question
This DBS-C01 practice question tests your understanding of deployment and migration. 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 is migrating a 2 TB MySQL database to Amazon Aurora MySQL. They want to minimize downtime and ensure data consistency. Which TWO methods should they use? (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
✓
Use AWS DMS with ongoing replication
AWS DMS with ongoing replication (Option A) is correct because it allows continuous change data capture (CDC) from the source MySQL database to the target Aurora MySQL cluster, minimizing downtime by keeping the target synchronized during the migration. This approach ensures data consistency by applying incremental changes after the initial full load, enabling a controlled cutover with minimal service interruption.
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.
- ✓
Use AWS DMS with ongoing replication
Why this is correct
Minimizes downtime with CDC.
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 Schema Conversion Tool to convert the schema
Why it's wrong here
Not needed for same engine migration.
- ✗
Use AWS Snowball Edge to transfer backup files
Why it's wrong here
Offline transfer causes downtime.
- ✓
Enable binary logging on the source database for change data capture
Why this is correct
Required for DMS CDC.
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 mysqldump to export data
Why it's wrong here
Causes downtime.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often think mysqldump or Snowball are viable for minimizing downtime, but they fail to recognize that these methods require taking the source offline or introduce significant latency, whereas DMS with binary logging enables near-zero downtime through continuous replication.
Detailed technical explanation
How to think about this question
AWS DMS uses a replication instance to connect to the source MySQL database and read binary log (binlog) events for CDC, applying them to the target Aurora cluster in near real-time. Enabling binary logging (Option D) on the source is a prerequisite for DMS to capture ongoing changes; without it, DMS can only perform a full load, not continuous replication. In practice, for a 2 TB database, the initial full load might take hours, but CDC keeps the target consistent, allowing a cutover window of seconds.
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?
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: Use AWS DMS with ongoing replication — AWS DMS with ongoing replication (Option A) is correct because it allows continuous change data capture (CDC) from the source MySQL database to the target Aurora MySQL cluster, minimizing downtime by keeping the target synchronized during the migration. This approach ensures data consistency by applying incremental changes after the initial full load, enabling a controlled cutover with minimal service interruption.
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.
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.
About these practice questions
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Last reviewed: Jul 4, 2026
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