AZ-900 - Describe Cloud Concepts - Section 1.1

Describe cloud computing including the shared responsibility model, cloud models, and the consumption-based model.

Define cloud computing and distinguish public, private, and hybrid cloud models, explaining who bears responsibility for each layer under the shared responsibility model. Recognise how the consumption-based model replaces upfront capital expenditure (CapEx) with operational expenditure (OpEx), and why that shift matters for budgeting.

shared responsibility modelpublic private and hybrid cloudconsumption-based modelCapEx versus OpExcloud computing

Practice question for this objective

Free sampleDescribe Cloud Conceptsmedium

A hybrid cloud lets a private cloud surge into public cloud resources to handle increased, temporary demand. Is this correct?

AYes Correct
BNo

Hybrid cloud connects private and public so workloads can burst into public capacity when demand spikes. A hybrid cloud uses both public and private clouds in an inter-connected environment and can let a private cloud surge for increased, temporary demand by deploying public cloud resources.

Why A is correct: Correct. A hybrid cloud uses both public and private clouds in an inter-connected environment and can let a private cloud surge for increased, temporary demand by deploying public cloud resources.

Why B is wrong: Claiming this is impossible would be wrong, because the ability to surge into public resources during temporary demand is a defining hybrid cloud capability.

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