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1.5. Reflection Checkpoint: Cloud Fundamentals

You’ve completed the foundational phase of your AZ-900 journey. Before moving on to specific Azure services, pause to reflect and consolidate your understanding of the core principles of cloud computing.

Scenario: You have been asked to present a high-level overview of cloud computing to a team of new hires. You need to explain the core concepts, benefits, and different models in a clear and concise way.

Reflection Question: How does a solid grasp of the fundamental cloud concepts (IaaS/PaaS/SaaS, Public/Private/Hybrid, CapEx/OpEx) provide the necessary context to understand the purpose and value of specific Azure services you will learn about next?

Key Concepts Review:
  • Core Characteristics: Can you explain high availability, scalability, and reliability in your own words?
  • Key Benefits: What is the difference between CapEx and OpEx, and why is this a major benefit of the cloud?
  • Service Models: Can you give a real-world example for IaaS, PaaS, and SaaS, and explain who is responsible for what in each model?
  • Deployment Models: When would an organization choose a private or hybrid cloud over a public cloud?

Take a moment to reaffirm your understanding. The groundwork you lay here will shape your success in the modules to come.

Storytelling Checksum: You’ve moved from orientation to understanding. You’re not just learning terms—you’re building a mental model of the cloud. Stay intentional, stay engaged, and let’s advance together.