AWS Certified Solutions Architect – Associate (SAA-C02) — Question 35

A media streaming company collects real-time data and stores it in a disk-optimized database system. The company is not getting the expected throughput and wants an in-memory database storage solution that performs faster and provides high availability using data replication.
Which database should a solutions architect recommend?

Answer options

• A. Amazon RDS for MySQL
• B. Amazon RDS for PostgreSQL.
• C. Amazon ElastiCache for Redis
• D. Amazon ElastiCache for Memcached

Correct answer: C

Explanation

The correct answer, Amazon ElastiCache for Redis, is designed for in-memory data storage, providing faster performance and high availability through data replication. Amazon RDS for MySQL and PostgreSQL are disk-based databases that won't meet the speed requirements, while Amazon ElastiCache for Memcached does not support data persistence and replication as effectively as Redis.