AWS Cloud and Account Foundations

Distinguish AWS Regions, Availability Zones, edge locations, and Regional versus global services.

Apply the AWS shared responsibility model to EC2, managed database, and serverless scenarios.

Explain how DNS, TCP/UDP ports, HTTP, and TLS support a cloud application request.

Calculate IPv4 CIDR ranges and determine whether two subnet ranges overlap.

Use the six AWS Well-Architected pillars to identify the main trade-off in a simple design.

Configure root-user MFA and separate administrative access so the root user is not used for routine tasks.

Use the AWS Management Console and CloudShell to identify the current account, Region, resource ARNs, and tags.

Create an AWS Budget alert and verify the account's Free Tier and billing settings.