The correct answer is D. “RDS simplifies relational database administration tasks”.
Explanation:
Amazon RDS is a managed relational database service on which you can run several types of database software. The service is managed so this reduces the database administration tasks an administrator would normally undertake. The managed service includes hardware provisioning, database setup, patching and backups.
A. “RDS provides 99.99999999999% reliability and durability” is incorrect. This is not true of Amazon RDS.
B. “RDS databases automatically scale based on load” is incorrect. This is not true, storage auto scaling is possible but for compute it scales by changing instance type (manual).
C. “RDS enables users to dynamically adjust CPU and RAM resources” is incorrect. You cannot adjust CPU and RAM dynamically, you must change the instance type and reboot the database instance.
