AZ-900: Describe the consumption-based model

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Cloud mostly operate with the consumption-based model. Most service in the cloud can be paid as you use for example;

• Azure functions: Such services are charged when they are called or executed — usually less than a cent for the request.
• Virtual Machine: Hourly or time-based model. Typically, few cents or dollars per hour — based on the machine itself.
• Storage: Unmanaged storage account charges per Gigabyte. So, you pay as you consume.

The topic is included in exam AZ-900. It is part of module “Describe Cloud Concepts” and section “Identify the benefits and considerations of using cloud services”