DOP-C02 Resilient Cloud Solutions Practice Question
A company is designing a resilient architecture for a web application that uses Amazon RDS for MySQL. The application must be able to withstand the loss of an entire AWS Region. Which TWO actions should the company take?
⚠ Common exam trap
A common mix-up: candidates confuse Multi-AZ (which provides high availability within a Region) with cross-region disaster recovery, leading them to incorrectly select Multi-AZ as a solution for regional failure.
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
✓
Configure automated backups to be copied to another Region.
To withstand the loss of an entire AWS Region, the company must have a disaster recovery strategy that includes cross-region data replication. Option B is correct because copying automated backups to another Region ensures that a recoverable copy of the database exists in a different geographic area, allowing restoration in a separate Region if the primary Region fails. Option D is correct because a Cross-Region Read Replica provides a live, asynchronously replicated copy of the database in another Region, which can be promoted to a standalone primary instance during a regional outage, minimizing recovery time.
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 RDS Proxy to pool database connections.
Why it's wrong here
RDS Proxy is for connection management, not DR.
- ✓
Configure automated backups to be copied to another Region.
Why this is correct
Allows recovery from backups in another Region.
- ✗
Enable Multi-AZ deployment for the RDS instance.
Why it's wrong here
Multi-AZ protects within a Region, not cross-Region.
- ✓
Create a Cross-Region Read Replica.
Why this is correct
Provides a readable standby in another Region for failover.
- ✗
Enable deletion protection on the RDS instance.
Why it's wrong here
Deletion protection prevents accidental deletion, not DR.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This DOP-C02 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 DOP-C02 exam.