DBS-C01 Deployment and Migration Practice Question
Network Topology
Refer to the exhibit. A company wants to migrate this RDS MySQL instance to an Aurora MySQL cluster with encryption at rest. What is the most efficient approach?
⚠ Common exam trap
Candidates often assume DMS is the only migration tool for cross-engine or encryption changes, but for RDS MySQL to Aurora MySQL with encryption, a snapshot copy with encryption is more efficient and avoids unnecessary data movement.
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 snapshot of the RDS instance, copy the snapshot with encryption, then restore to an Aurora cluster.
It is the most efficient approach to migrate an RDS MySQL instance to an encrypted Aurora MySQL cluster. You first create a snapshot of the RDS instance, then copy that snapshot with encryption enabled (using an AWS KMS key), and finally restore the encrypted snapshot to an Aurora cluster. This method ensures encryption at rest is applied during the migration without requiring additional data transfer or schema conversion.
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 to migrate the database to an encrypted Aurora cluster.
Why it's wrong here
DMS is an option but less efficient than a snapshot-based approach.
- ✓
Create a snapshot of the RDS instance, copy the snapshot with encryption, then restore to an Aurora cluster.
Why this is correct
Copying the snapshot enables encryption, then restoring to Aurora creates an encrypted cluster.
- ✗
Create a snapshot of the RDS instance and restore it directly to an Aurora cluster.
Why it's wrong here
The snapshot is unencrypted; Aurora requires encryption to be enabled at cluster creation.
- ✗
Create an encrypted read replica in Aurora and promote it.
Why it's wrong here
You cannot create an encrypted Aurora replica from an unencrypted RDS instance.
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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.