CV0-004 Deployment Practice Question
A company is migrating a 50 TB on-premises database to AWS RDS MySQL. The migration must have minimal downtime and support ongoing replication during the cutover. The database schema is standard MySQL. Which combination of services should the company use?
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) with Change Data Capture (CDC) replication
AWS DMS with CDC enables minimal downtime migration by replicating ongoing changes. Schema Conversion Tool is unnecessary for MySQL to MySQL. Snowball is for large data sets offline, not for minimal downtime.
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 DMS with schema conversion tool to convert to MySQL
Why it's wrong here
Schema conversion is not needed for same engine.
- ✓
AWS Database Migration Service (DMS) with Change Data Capture (CDC) replication
Why this is correct
DMS supports CDC for minimal downtime.
- ✗
AWS Snowball Edge to transfer database dump, then import to RDS
Why it's wrong here
Snowball is offline and not minimal downtime.
- ✗
AWS DataSync to transfer database files to S3, then restore to RDS
Why it's wrong here
DataSync is for file transfers, not database replication.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This CV0-004 practice question is part of Courseiva's free CompTIA 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 CV0-004 exam.