SAP-C02 Design for New Solutions Practice Question
A company is designing a disaster recovery solution for a critical database using Amazon RDS Multi-AZ. However, they also need to protect against regional failures. Which additional AWS service should they use?
⚠ Common exam trap
Watch out — candidates often confuse Multi-AZ (which is high availability within a region) with cross-region disaster recovery, assuming Multi-AZ alone provides regional protection.
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
✓
RDS Cross-Region Read Replicas
RDS Multi-AZ provides high availability within a single region by synchronously replicating data to a standby instance in a different Availability Zone. To protect against a regional failure, you need a cross-region disaster recovery solution. RDS Cross-Region Read Replicas asynchronously replicate data to a different AWS Region, allowing you to promote the replica to a standalone primary database in the event of a regional outage.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
RDS Multi-AZ in the same region
Why it's wrong here
Multi-AZ only protects within a region, not cross-region.
- ✓
RDS Cross-Region Read Replicas
Why this is correct
Provides a readable replica in another region for DR.
- ✗
Amazon S3
Why it's wrong here
S3 is not a database DR solution.
- ✗
AWS Database Migration Service
Why it's wrong here
DMS is for migration, not continuous DR.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This SAP-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 SAP-C02 exam.