#1 – AWS Cloud Introduction

Source: Dev.to

Introduction

Amazon Web Services (AWS) started as an internal infrastructure used by Amazon. Over time, the company realized other organisations could benefit from the same infrastructure, so they began offering it as a service. The first AWS service launched was SQS (Simple Queue Service), which allowed applications to communicate asynchronously using message queues. Today AWS provides hundreds of services used by companies around the world.

AWS Global Infrastructure

A Region is a geographical area that contains multiple Availability Zones (AZs).
Each Availability Zone is a cluster of data centres connected by high‑speed, low‑latency networks. AZs are designed to be isolated from each other so that failures or disasters affecting one zone do not impact the others.

Key Points

• Each region contains multiple Availability Zones.

Choosing an AWS Region

• Compliance – Some regulations require data to stay within certain geographic locations.

Global vs Regional Services

Global services (available across all regions) include:

• AWS Identity and Access Management (IAM)
• Amazon Route 53
• Amazon CloudFront
• AWS WAF

Most other AWS services are regional services, meaning they are deployed within a specific region.