10 new foundational concept articles
· 2 min read
Ten new articles covering concepts that underpin multiple AWS services — the kind of background knowledge the exam assumes you have.
Why concept articles?
Service articles (EC2, S3, RDS…) cover what a service does. But the exam also tests whether you understand why things are built the way they are — virtualization, caching, event-driven architecture, and so on.
These concept articles fill that gap. Each one is a short, focused primer written in the same house style as service articles.
What's new
| Article | Module | What it covers |
|---|---|---|
| IaaS vs PaaS vs SaaS | 1 | The three cloud service models with concrete examples |
| Cloud Management Tiers | 3 | Serverless → Fully managed → Managed → Unmanaged |
| High Availability & Fault Tolerance | 13 | HA vs FT, RPO/RTO, active-active vs active-passive |
| Disaster Recovery | 13 | Backup/restore, pilot light, warm standby, multi-site |
| What is Caching? | 7 | Cache hit/miss, TTL, write strategies, when to use |
| What is a CDN? | 4 | How CloudFront works under the hood |
| Load Balancing | 2 | ALB vs NLB vs CLB, routing algorithms |
| Object vs Block vs File Storage | 6 | When to use S3 vs EBS vs EFS |
| Microservices vs Monolith | 3 | Trade-offs, when each fits, AWS service alignment |
| DevOps & CI/CD | 10 | Pipeline stages, CodePipeline, CodeBuild, CodeDeploy |
Where to find them
All concept articles appear in the Articles tab, grouped under their domain (Cloud Concepts, Technology, Security, Billing). They also appear on their respective module detail pages under the relevant sub-section.