DBS-C01 Workload-Specific Database Design Practice Question
A company is designing a relational database for an e-commerce application that requires high availability and automated failover across AWS Regions. Which AWS database service should they use?
⚠ Common exam trap
Many candidates confuse Multi-AZ deployments (which are Region-specific) with cross-Region failover, or they mistakenly think DynamoDB Global Tables is relational, but the question's requirement for a relational database eliminates that option.
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 Global Database
Amazon Aurora Global Database is the correct choice because it is designed for cross-Region disaster recovery and high availability, replicating data with a typical latency of under one second across multiple AWS Regions. It supports automated failover from the primary Region to one of the secondary Regions, meeting the requirement for automated cross-Region failover without manual intervention.
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 DynamoDB Global Tables
Why it's wrong here
DynamoDB is NoSQL, not relational.
- ✗
Amazon RDS with Multi-AZ deployment
Why it's wrong here
Multi-AZ is single-Region only.
- ✓
Amazon Aurora Global Database
Why this is correct
Supports cross-Region replication and failover.
- ✗
Amazon Redshift with cross-Region snapshot copy
Why it's wrong here
Redshift is for analytics, not OLTP.
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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.