DBS-C01 Deployment and Migration Practice Question
A company has a 50 GB MariaDB database on an on-premises server. They want to migrate to Amazon RDS for MariaDB. They have a 100 Mbps network connection. The migration window is 2 hours. The database can be offline for up to 30 minutes. Which migration approach is most appropriate?
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
✓
Create a MariaDB dump, transfer to an EC2 instance in the same region, then import to RDS.
The most appropriate because a MariaDB dump to an EC2 instance in the same region allows for a fast transfer over the network, and the import into RDS can be completed within the 2-hour migration window. The 50 GB database at 100 Mbps can be transferred in just over an hour, well within the window. Option A (DMS with ongoing replication) is unnecessarily complex for a one-time migration and may require more setup time. Option B (Snowball) is overkill for 50 GB and would not meet the 2-hour window due to shipping and processing delays. Option D (SCT) is not needed since the source and target are both MariaDB, and schema conversion is unnecessary.
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 DMS with ongoing replication.
Why it's wrong here
Overkill for a 50 GB database with 30 min downtime allowed.
- ✗
Use AWS Snowball to transfer the database files.
Why it's wrong here
Unnecessary for small database.
- ✓
Create a MariaDB dump, transfer to an EC2 instance in the same region, then import to RDS.
Why this is correct
Simple and within window; dump/import time ~20 minutes.
- ✗
Use AWS SCT to convert schema and then use DMS.
Why it's wrong here
SCT not needed for MariaDB to MariaDB.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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.