Amazon RDS

1. Core concepts

   DB instances, engines, storage types, instance classes, Regions and Availability Zones.

2. Configuring a DB instance

   Choosing engine, instance class, storage, networking, parameter groups and option groups.

3. Managing a DB instance

   Modifying, rebooting, stopping, upgrading and maintaining DB instances.

4. Multi-AZ deployments

   Synchronous standby replicas, automatic failover and Multi-AZ DB clusters.

5. Read replicas

   Asynchronous replicas for read scaling and cross-Region disaster recovery.

6. Backups and restore

   Automated backups, snapshots, point-in-time restore and exporting data.

7. Blue/Green deployments

   Staging environments for safe engine upgrades and schema changes.

8. Monitoring

   CloudWatch metrics, Enhanced Monitoring and Performance Insights.

9. RDS Proxy

   Connection pooling, failover handling and IAM authentication through a proxy.

10. Security

    Encryption at rest, SSL/TLS, IAM database authentication, security groups and Secrets Manager.

11. Best practices

    Operational guidance for performance, availability and cost.

12. Quotas and constraints

    Per-account and per-instance limits.

Each section links to the official page. Titles and summaries by Extra Credit; the docs belong to their authors.