4Designing Cost-Optimized Architectures

• 4.1Compute Pricing Models

  Understand EC2 pricing models—On-Demand, Savings Plans/Reserved Instances, and Spot—and how to optimize cost by matching them to workloads.

• 4.2Storage Cost Optimization

  Understand S3 storage classes (Standard / Standard-IA / Glacier), lifecycle policies, and optimizing cost by choosing the right storage.

• 4.3Cost Management Tools and Right-Sizing

  Understand cost visibility, management, and recommendations via Cost Explorer, AWS Budgets, and Trusted Advisor, plus right-sizing resources.