CV0-004 Deployment Practice Question
A company is migrating a 50 TB on-premises database to AWS RDS with minimal downtime. They plan to use AWS DMS with ongoing change data capture (CDC). Which additional AWS service should be used to handle the initial full load efficiently before enabling CDC replication?
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 Snowball Edge
AWS DMS can use Snowball Edge for large initial loads to avoid lengthy network transfers. S3 Transfer Acceleration speeds up uploads but is not optimal for 50 TB initial load. Database Migration Service is the tool itself. DataSync is for file storage, not databases.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Amazon S3 Transfer Acceleration
Why it's wrong here
Accelerates uploads to S3 but still depends on network bandwidth for 50 TB.
- ✓
AWS Snowball Edge
Why this is correct
Snowball Edge can physically transfer large data sets, then DMS continues with CDC.
- ✗
AWS DataSync
Why it's wrong here
DataSync is for file transfers to/from S3/EFS, not databases.
- ✗
AWS Database Migration Service (DMS)
Why it's wrong here
DMS is the main migration service, but a separate service is needed for the initial load.
Quick reference
AWS S3 Storage Class Comparison
| Storage Class | Min Duration | Retrieval | Use Case |
|---|---|---|---|
| S3 Standard | None | Immediate | Frequently accessed data |
| S3 Standard-IA | 30 days | Immediate | Infrequent access, rapid retrieval |
| S3 One Zone-IA | 30 days | Immediate | Non-critical infrequent data |
| S3 Intelligent-Tiering | None | Immediate–hours | Unknown or changing access patterns |
| S3 Glacier Instant | 90 days | Milliseconds | Archive with instant retrieval |
| S3 Glacier Flexible | 90 days | Minutes–hours | Archive, flexible retrieval |
| S3 Glacier Deep Archive | 180 days | Hours | Long-term compliance archive |
Go deeper
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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.