AWS Database Services Overview

Amazon Relational Database Service (RDS)

• Amazon RDS is a managed relational Database service, which means it simplifies database administration tasks by handling hardware provisioning, database setup, patching, and backups.
• The statement "RDS databases automatically scale based on load" is incorrect. While storage can autoscale, compute scaling is manual and involves changing instance type.
• The claim "RDS provides 99.99999999999% reliability and durability" is also incorrect. This level of reliability is not guaranteed by Amazon RDS.
• RDS does not enable users to dynamically adjust CPU and RAM resources. These adjustments are made by changing the instance type and rebooting the database instance.

Amazon DynamoDB

• Amazon DynamoDB offers point-in-time recovery (PITR) for tables, providing continuous backups for the last 35 days.
• Customers are responsible for configuring PITR, while AWS handles the actual backup process.

AWS Value Proposition

• The pay-as-you-go pricing model of AWS allows companies to transition from fixed costs to variable costs, enabling them to pay only for what they use and avoid long-term contracts.

Total Cost of Ownership (TCO)

• When evaluating TCO for a workload that requires physical isolation, consider dedicated hosts as a hosting model.

AWS Dedicated Hosts

• Dedicated Hosts offer physical isolation for workloads, providing dedicated hardware resources that are not shared with other customers.
• This hosting model can be crucial when strong isolation requirements or security considerations are paramount.

This quiz covers key concepts and features of Amazon RDS and DynamoDB. It explores database management, scaling limitations, and backup functionalities. Test your knowledge on AWS services and their value propositions.