DBS-C01 Deployment and Migration Practice Question
A company is deploying Amazon RDS for MySQL in a Multi-AZ configuration for high availability. The database must be able to automatically failover to a standby in another Availability Zone. Which RDS feature enables this?
⚠ Common exam trap
Candidates often confuse Read Replicas (asynchronous, manual promotion) with Multi-AZ (synchronous, automatic failover), as both involve replicas in different AZs but serve fundamentally different purposes.
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
✓
Multi-AZ deployment
Multi-AZ deployment for Amazon RDS automatically provisions and maintains a synchronous standby replica in a different Availability Zone. When a failure is detected, Amazon RDS automatically fails over to the standby, ensuring high availability without manual intervention. This is the native RDS feature designed specifically for automatic failover across AZs.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Multi-AZ deployment
Why this is correct
Multi-AZ automatically fails over to standby in another AZ.
- ✗
Automated backups
Why it's wrong here
Backups enable point-in-time recovery, not failover.
- ✗
Enhanced Monitoring
Why it's wrong here
Enhanced Monitoring provides metrics, not failover capability.
- ✗
Read Replicas
Why it's wrong here
Read Replicas are for offloading read traffic, not automatic failover.
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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.