Course Roadmap

Last Updated: January 12, 2026

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This course is designed to be easy to follow, with the most important topics covered first. The early chapters focus on beginner to intermediate concepts, and the later sections gradually move into advanced topics.

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21 sections177 chapters

Course Introduction

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What is System Design?

30 Must-Know Concepts

Single Point of Failure (SPOF)

Latency vs Throughput vs Bandwidth

Consistent Hashing

Consistency Models

Domain Name System (DNS)

Proxy vs Reverse Proxy

What are Load Balancers?

Load Balancing Algorithms

DNS Load Balancing

Anycast Routing

API Design

What is an API?

API Architectural Styles

REST API Design

GraphQL Deep Dive

API Infrastructure

API Security

Authentication vs Authorization

Session vs Token Based Auth

Single Sign-On (SSO)

Real-Time Communication

Server-Sent Events (SSE)

Asynchronous Communication

Sync vs Async Communication

Change Data Capture (CDC)

Delivery Semantics

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Course Introduction

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