You are designing a high-availability multi-tier web application. You want to ensure that if an entire Availability Zone (AZ) fails, your application automatically recovers with zero data loss for the database. Which RDS configuration should you use?

Direct Answer (Verified)Reviewed by Sunny (Senior Cloud Engineer)

Correct Answer: RDS Multi-AZ with synchronous replication

Multi-AZ RDS maintains a standby instance in a different AZ and uses synchronous replication to ensure that if the primary fails, the standby is up to date and can take over automa...

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Real Exam ScenarioAmazon RDS

You are designing a high-availability multi-tier web application. You want to ensure that if an entire Availability Zone (AZ) fails, your application automatically recovers with zero data loss for the database. Which RDS configuration should you use?

✓ Correct Answer & ExplanationAmazon RDS

Correct Answer

RDS Multi-AZ with synchronous replication

Why This Answer Is Correct

Multi-AZ RDS maintains a standby instance in a different AZ and uses synchronous replication to ensure that if the primary fails, the standby is up to date and can take over automatically.

📚 What This Question Tests

This question evaluates your knowledge of Amazon RDS — a core concept tested in AWS Certified Solutions Architect – Professional (SAP-C02). Understanding Amazon RDS is essential for designing scalable, secure, and cost-effective cloud architectures. Mastery of this topic will help you answer scenario-based questions confidently on exam day.