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.
Which TWO AWS services can be used together to migrate an on-premises MySQL database to Amazon Aurora MySQL with minimal downtime? (Select TWO.)
AWS Schema Conversion Tool (SCT)
Converts schema for compatibility.
Amazon Route 53
Why wrong: DNS.
AWS CloudFormation
Why wrong: Orchestration, not migration.
AWS Database Migration Service (DMS)
Handles data migration with CDC.
AWS Global Accelerator
Why wrong: Network optimization.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
AWS Schema Conversion Tool (SCT)
AWS Database Migration Service (DMS) can perform continuous replication from an on-premises MySQL source to an Amazon Aurora MySQL target using change data capture (CDC), enabling near-zero downtime. The AWS Schema Conversion Tool (SCT) is used to assess and convert the source schema, including any incompatible objects, to ensure the Aurora target is ready for migration. Together, SCT handles schema transformation while DMS handles the ongoing data replication.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
AWS Schema Conversion Tool (SCT)
Why this is correct
Converts schema for compatibility.
Related concept
Read the scenario before looking for a memorised answer.
Amazon Route 53
Why it's wrong here
DNS.
AWS CloudFormation
Why it's wrong here
Orchestration, not migration.
AWS Database Migration Service (DMS)
Why this is correct
Handles data migration with CDC.
Related concept
Read the scenario before looking for a memorised answer.
AWS Global Accelerator
Why it's wrong here
Network optimization.
Common exam traps
The trap here is that candidates often assume a single service like DMS alone can handle schema conversion, but DMS does not convert incompatible schema objects — that is the specific role of SCT, and both are required for a complete migration with minimal downtime.
Detailed technical explanation
DMS uses a replication instance to connect to the source MySQL database via native MySQL binary log (binlog) for CDC, capturing inserts, updates, and deletes in near real-time. SCT can generate an assessment report that identifies manual conversion tasks, such as unsupported MySQL storage engines or data types, and can automatically convert the schema to Aurora MySQL-compatible DDL. In a real-world scenario, you would run SCT first to prepare the target schema, then use DMS with full load plus CDC to keep the target synchronized until cutover.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
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
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FAQ
Deployment and Migration — This question tests Deployment and Migration — Read the scenario before looking for a memorised answer..
The correct answer is: AWS Schema Conversion Tool (SCT) — AWS Database Migration Service (DMS) can perform continuous replication from an on-premises MySQL source to an Amazon Aurora MySQL target using change data capture (CDC), enabling near-zero downtime. The AWS Schema Conversion Tool (SCT) is used to assess and convert the source schema, including any incompatible objects, to ensure the Aurora target is ready for migration. Together, SCT handles schema transformation while DMS handles the ongoing data replication.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 24, 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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