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[AWS Cloud Fundamental Notes] Overview of Common AWS Architectures

Quickly understand common architectures for various applications.


Introducing various common application architecture components and their evolution.

Evolution of Architectures:

By narrowing the scope of development features, the deployment cycle of features is shortened.

To address the issue of insufficient system hardware: from physical construction to cloud classic architecture.
To accommodate more users: from cloud classic architecture to high concurrency architecture.
To reduce downtime: from high concurrency architecture to agile architecture.

Classic Cloud Architecture

AWS Service Function
Route 53 DNS Service
EC2 Servers
RDS Database
S3 File Storage
IAM Permission Management
CloudTrail User Behavior Monitoring
CloudWatch Resource Monitoring

Serverless Architecture Overview

Network packets enter the scheduling management service, which activates application servers to process packet requests.

  • API Gateway: Scheduling management service
  • Lambda: Application server

Each function is packaged separately and can be quickly started when needed, without affecting other functions.

Mobile Application Overview

Two major requirements for mobile apps:

1. Social Login

Authenticate identity through social software without the need for re-registration.

2. Message Notification

Send in-app notifications and emails to users.

High Concurrency Architecture

Traffic passes through CloudFront to reach ELB , then scales machines through Auto Scaling .
Long-term tasks are forwarded to SQS for processing by company servers, with statuses written to ElastiCache.
Relevant data is written to DynamoDB.


Amazon CloudFront is a content delivery network (CDN) service.


Elastic Load Balancing (ELB)

Distributes network traffic to improve application scalability, automatically distributing incoming application traffic across multiple targets and virtual devices in one or more availability zones (AZs).

Auto Scaling

AWS Auto Scaling monitors applications and automatically adjusts capacity.


Amazon SQS

A temporary storage for task messages, extracting them for processing when there are server resources available.

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