AWS Certified Cloud Practitioner (CLF-C02) — Question 553

A company uses Amazon RDS for a product database. The company wants to ensure the database is highly available.

Which feature of Amazon RDS will meet this requirement?

Answer options

• A. Read replicas
• B. Blue/green deployment
• C. Multi-AZ deployment
• D. Reserved Instances

Correct answer: C

Explanation

Amazon RDS Multi-AZ deployments provide high availability and automatic failover support by provisioning and maintaining a synchronous standby replica in a different Availability Zone. While Read Replicas are designed for read scalability, they do not offer the same automatic failover capabilities for high availability as Multi-AZ. Reserved Instances are a pricing option for cost savings, and Blue/green deployments are used for safe database updates rather than continuous high availability.