Master AWS Cloud Computing From Scratch

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

Elastic Compute Cloud (EC2)

Amazon EC2 provides resizable compute capacity in the cloud. An EC2 instance is a virtual server whose operating system and software you control.

Why it matters

EC2 is useful when you need control over the operating system, runtime, networking and installed application software.

How it works

Choose an image and instance type → configure networking/security → launch → connect → install/run workload → monitor → stop or terminate when finished.

Real-world example: A backend API can run as a service on an EC2 instance and listen on a controlled application port.

Core Concept

EC2 provides resizable compute capacity as virtual machines called instances.

Choose an instance type, operating system image, networking and storage based on workload needs.

AMIOS + softwareEC2 InstanceComputeNetwork + StorageApplicationSpring Boot

What you should remember

Key idea

EC2 provides resizable compute capacity as virtual machines called instances.

Key idea

Choose an instance type, operating system image, networking and storage based on workload needs.

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 is Amazon EC2 mainly used for?