Companion notes
Cloud computing is the foundation of AZ-900. Before Azure services, pricing, identity, or governance make sense, learners need a clear model for what the cloud actually changes.
Lesson summary
This lesson explains cloud computing in plain language: on-demand access to computing resources, flexible scaling, shared responsibility, and paying for what you use. The goal is to help learners recognize cloud concepts in exam questions and real-world scenarios.
Key ideas
- Cloud computing gives access to servers, storage, databases, networking, and software over the internet.
- Scalability means resources can grow or shrink as demand changes.
- Consumption-based pricing means costs are tied to usage rather than only upfront hardware purchases.
- Shared responsibility means the cloud provider and customer each own different parts of security and operations.
Practice-style questions covered
Practice-style prompts in the lesson reinforce how to identify cloud benefits, pricing models, and responsibility boundaries in realistic situations.