AWS Certified Cloud Practitioner — Question 173

A company needs to deploy a PostgreSQL database into Amazon RDS. The database must be highly available and fault tolerant.
Which AWS solution should the company use to meet these requirements?

Answer options

• A. Amazon RDS with a single Availability Zone
• B. Amazon RDS snapshots
• C. Amazon RDS with multiple Availability Zones
• D. AWS Database Migration Service (AWS DMS)

Correct answer: C

Explanation

The correct answer is C because Amazon RDS with multiple Availability Zones provides high availability and fault tolerance by automatically replicating the database across different zones. Options A and B do not offer the necessary redundancy and availability, while D is a service for migrating databases, not for hosting them.