What You'll Be Tested On
- EC2 pricing models: On-Demand, Reserved, Savings Plans, Spot
- S3 storage class selection and lifecycle policies
- Right-sizing compute resources
- Serverless architectures for cost optimization
- Data transfer costs and optimization
- AWS Cost Explorer, Budgets, and Trusted Advisor
Key AWS Services in This Domain
Exam Tips for Domain 4
Compute Savings Plans offer the most flexibility compared to Reserved Instances.
S3 Intelligent-Tiering automates cost savings for data with unknown access patterns.
Spot Instances can save up to 90% but can be interrupted — use for fault-tolerant workloads.
Use S3 lifecycle policies to transition data to cheaper tiers automatically.
Practice Domain 4 Questions
Test your knowledge of Design Cost-Optimized Architectures with practice questions from our SAA-C03 question bank.
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