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 200 GB MySQL database to Amazon Aurora MySQL. The migration must be completed within a 1-hour downtime window. Which TWO methods can achieve this?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Use Percona XtraBackup to create a physical backup, upload to S3, and restore to Aurora.
Using mysqldump with parallel threads can speed up export/import. Percona XtraBackup creates a fast physical backup that can be restored to Aurora. DMS full load may be slower. RDS read replica is not applicable. SCT is for schema conversion.
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 SCT to convert the schema and then perform a data load.
Why it's wrong here
SCT is for schema conversion, not data migration.
✗
Use AWS DMS with full load only.
Why it's wrong here
DMS full load may be slower due to network overhead.
✓
Use Percona XtraBackup to create a physical backup, upload to S3, and restore to Aurora.
Why this is correct
XtraBackup is fast and Aurora supports restoring from it via S3.
Related concept
Read the scenario before looking for a memorised answer.
✓
Use mysqldump with parallel threads and import using mysql command.
Why this is correct
Parallel mysqldump can reduce export time, and import can be done efficiently.
Related concept
Read the scenario before looking for a memorised answer.
✗
Create an RDS Read Replica of the on-premises database and promote it.
Why it's wrong here
Cannot create RDS Read Replica from on-premises.
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 media company stores terabytes of video archives that are accessed once a year for audit purposes. Moving these objects to a cold storage tier (Azure Archive, S3 Glacier, or Google Nearline) costs a fraction of hot storage. Questions like this test whether you understand storage tiers, access frequency tradeoffs, and retrieval latency requirements.
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.
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 Percona XtraBackup to create a physical backup, upload to S3, and restore to Aurora. — Using mysqldump with parallel threads can speed up export/import. Percona XtraBackup creates a fast physical backup that can be restored to Aurora. DMS full load may be slower. RDS read replica is not applicable. SCT is for schema conversion.
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.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Question Discussion
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