- A
AWS Schema Conversion Tool (SCT).
Why wrong: SCT converts schema, not data.
- B
AWS Snowball Edge.
Why wrong: Overkill for 10 GB; network transfer is faster and simpler.
- C
mysqldump and mysql command-line tools.
Why wrong: While functional, this requires manual steps and the database must be offline during export.
- D
AWS Database Migration Service (DMS).
DMS automates the migration process and can complete quickly over high bandwidth.
Question 77 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 10 GB MySQL database to Amazon RDS for MySQL. They have a 1 Gbps connection to AWS. The migration must be completed in the least amount of time with minimal manual effort. Which tool should be used?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue:
"least"Why it matters: You want the option with minimum overhead, fewest steps, or lowest impact — not the most feature-rich or comprehensive answer.
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
✓
AWS Database Migration Service (DMS).
AWS Database Migration Service (DMS) is the correct choice because it can perform a live, continuous migration of a 10 GB MySQL database to Amazon RDS for MySQL with minimal downtime and manual effort. DMS handles schema conversion (if needed), data replication, and ongoing changes via Change Data Capture (CDC), allowing the migration to complete in the least amount of time while automatically managing the full load and sync process over the 1 Gbps connection.
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.
- ✗
AWS Schema Conversion Tool (SCT).
Why it's wrong here
SCT converts schema, not data.
- ✗
AWS Snowball Edge.
Why it's wrong here
Overkill for 10 GB; network transfer is faster and simpler.
- ✗
mysqldump and mysql command-line tools.
Why it's wrong here
While functional, this requires manual steps and the database must be offline during export.
- ✓
AWS Database Migration Service (DMS).
Why this is correct
DMS automates the migration process and can complete quickly over high bandwidth.
Clue confirmation
The clue word "least" 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
The trap here is that candidates often choose mysqldump (Option C) because it is familiar and free, but they overlook the requirement for minimal manual effort and the need for continuous replication, which DMS provides automatically.
Detailed technical explanation
How to think about this question
AWS DMS uses a replication instance to connect to the source MySQL database and read the binary log (binlog) in real-time to capture ongoing changes via CDC, enabling near-zero downtime migrations. For a 10 GB database over a 1 Gbps connection, DMS can complete the full load in minutes and then seamlessly apply CDC to keep the target RDS instance synchronized until cutover. A common real-world scenario is migrating a production database with active writes, where DMS’s CDC capability avoids the need for a lengthy maintenance window.
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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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: AWS Database Migration Service (DMS). — AWS Database Migration Service (DMS) is the correct choice because it can perform a live, continuous migration of a 10 GB MySQL database to Amazon RDS for MySQL with minimal downtime and manual effort. DMS handles schema conversion (if needed), data replication, and ongoing changes via Change Data Capture (CDC), allowing the migration to complete in the least amount of time while automatically managing the full load and sync process over the 1 Gbps connection.
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: "least". You want the option with minimum overhead, fewest steps, or lowest impact — not the most feature-rich or comprehensive answer.
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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