AWS Infrastructure Intro

AWS Global Infrastructure

When you use AWS, your applications run on physical hardware located in data centers around the world. Understanding how this infrastructure is organized helps you design reliable, high-performing applications.

This section covers where AWS services run, what categories of services are available, and how security responsibilities are divided.

AWS Global Infrastructure Video

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Regions and Availability Zones

AWS infrastructure consists of Regions. These are physical locations around the world, each containing multiple Availability Zones (isolated data centers with redundant power and networking).

This design provides high availability and fault tolerance. If one data center fails, others keep your application running.

AWS Service Categories

AWS organizes its services into these core categories:

• Compute - Run applications (EC2, Lambda)
• Storage - Store data (S3, EBS)
• Networking - Connect resources (VPC, Route 53)
• Databases - Manage data (RDS, DynamoDB)
• Security - Control access (IAM, KMS)

AWS Shared Responsibility Model

Security in AWS is a shared responsibility between AWS and the customer.

AWS is responsible for: Security of the cloud - protecting the infrastructure (hardware, software, networking, facilities).

You are responsible for: Security in the cloud - managing your data, access controls, and encryption.