This post covers essential AWS foundational concepts to understand before beginning certification study.
•Cloud computing is defined as renting virtual resources over the internet from shared physical infrastructure, with on-demand provisioning and minimal management effort
•AWS infrastructure is organized in a hierarchy: Regions (geographic areas) → Availability Zones (independent data centers for redundancy) → Edge Locations (PoP for caching)
•CloudFront CDN caches static content at Edge Locations worldwide to reduce latency for geographically distant users
•EC2 instances are virtual machines created by a hypervisor (AWS Nitro) that splits physical servers into isolated slices shared across customers
•The Shared Responsibility Model divides security: AWS owns physical infrastructure, host OS, and hypervisor; customers own guest OS, IAM, data encryption, and application configuration
•AWS Support Plans range from Developer ($29/mo, email only, 1 contact) to Business ($100+/mo, p
This summary was automatically generated by AI based on the original article and may not be fully accurate.
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