DBS-C01 Deployment and Migration Practice Question
A company is deploying a new application that requires a relational database with automatic failover and cross-Region disaster recovery. The application is read-heavy and expects up to 10 GB of data. Which combination of AWS services should be used?
⚠ Common exam trap
Many candidates confuse Multi-AZ with cross-Region disaster recovery, assuming a read replica in another Region provides automatic failover, but in RDS MySQL, read replicas require manual promotion and do not support automatic cross-Region failover.
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
✓
Amazon Aurora with Multi-AZ and an Aurora global database
Amazon Aurora with Multi-AZ provides high availability within a single Region, while Aurora Global Database enables cross-Region disaster recovery with typical replication latency of under one second. Aurora is optimized for read-heavy workloads and scales automatically, making it ideal for the 10 GB dataset and the application's requirements.
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 RDS for MySQL with Multi-AZ and a read replica in another Region
Why it's wrong here
RDS read replicas can be cross-Region, but the failover is not automatic for the replica.
- ✗
Amazon S3 with AWS Glue and Amazon Athena
Why it's wrong here
These are not relational databases.
- ✓
Amazon Aurora with Multi-AZ and an Aurora global database
Why this is correct
Aurora global database provides cross-Region replication and fast failover.
- ✗
Amazon DynamoDB with global tables
Why it's wrong here
DynamoDB is NoSQL, not relational.
Go deeper
Related to this question
About these practice questions
One of 1,663 original DBS-C01 practice questions on Courseiva, each with a full explanation and wrong-answer analysis — not exam dumps or protected exam content. Learn why practice questions differ from exam dumps →
JA
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.