Aws Cloud Practitioner - Guide.docx

Trade fixed capital expense (CapEx) for variable operational expense (OpEx).

Serverless functions (run code without managing servers). Elastic Beanstalk: PaaS for deploying and scaling web apps. Storage: S3: Object storage for files; highly durable. AWS Cloud Practitioner - Guide.docx

| Model | Description | Best for... | | :--- | :--- | :--- | | | Pay per second/hour. No upfront. | Unknown workloads, short-term testing. | | Reserved Instances | Commit to 1 or 3 years. Up to 75% discount. | Steady-state apps (web servers, databases). | | Savings Plans | Commit to $ amount per hour. Flexible across compute. | EC2, Lambda, Fargate usage. | | Spot Instances | Bid for unused capacity. Up to 90% discount. | Fault-tolerant, batch jobs, big data. | | Dedicated Hosts | Physical server for your sole use. | Regulatory compliance (software licensing). | Trade fixed capital expense (CapEx) for variable operational