Master AWS Cloud Computing From Scratch

Clear, interactive, and structured AWS lessons designed for absolute beginners.

Amazon VPC

A Virtual Private Cloud provides an isolated networking environment in AWS where you define IP ranges, subnets, routes and traffic controls.

Why it matters

Networking determines how resources reach each other, the internet and other networks.

How it works

VPC CIDR → subnets → route tables → gateways → security controls → resources.

Real-world example: A public subnet can host a load balancer while application instances and databases can stay in private subnets.

Core Concept

A VPC defines IP ranges, subnets, routing and network security controls.

A typical web architecture separates public entry points from private application and database resources.

VPCPublic SubnetLoad BalancerInternet Gateway routePrivate SubnetApp / DatabaseNo direct inbound internet

What you should remember

Key idea

A VPC defines IP ranges, subnets, routing and network security controls.

Key idea

A typical web architecture separates public entry points from private application and database resources.

Real-world example

Use a realistic cloud workload and focus on the responsibility of this AWS service.

User → AWS service → application → data / response

Choose the service that matches the responsibility instead of forcing every workload into one resource.

# Conceptual workflow aws-service --resource example # Verify configuration → test → monitor → clean up
Practice tip: Build the smallest possible lab, verify the result, then remove resources you no longer need.

Quick Test

1 Question

What does VPC stand for?