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Cloud Computing · Foundational

Amazon Relational Database Service (RDS)

AWS managed relational database service for MySQL, PostgreSQL, MariaDB, Oracle, SQL Server and Db2.

Definition

RDS automates provisioning, patching, backups with point-in-time recovery (retention up to 35 days), monitoring and scaling of relational databases. It supports Multi-AZ deployments for availability, read replicas for read scaling, encryption with KMS and IAM database authentication. Customers do not get OS access (except RDS Custom).

Example

A web app moves its MySQL database from an EC2 instance to RDS to eliminate manual backups and patching.

Exam tip

Need OS-level access or unsupported features? Use EC2 or RDS Custom. Need minimal admin? Use RDS or Aurora.

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