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Azure AZ-900 Cloudcomputing — practice by topic

Browse 9 questions across 2 Cloudcomputing topics. Choose what you want to revise, then open a question to check its answer and worked solution.

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Cloudcomputing topics

Cloud Computing Fundamentals (8)Azuremanagement (1)

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Which tool gives you an upfront estimate of monthly cost for a planned Azure deployment before any resources are created?Read the answer and worked solution →How many essential characteristics does NIST define for cloud computing?Read the answer and worked solution →AWS EC2 is an example of which cloud service model?Read the answer and worked solution →A HYBRID cloud deployment model combines:Read the answer and worked solution →

Worked practice questions

Which tool gives you an upfront estimate of monthly cost for a planned Azure deployment before any resources are created?

  1. Azure Service Health
  2. Microsoft Purview
  3. Azure Pricing Calculator
  4. Azure Resource Graph Explorer
Show answer and solution

Correct answer: C. Azure Pricing Calculator

The Pricing Calculator lets you compose a hypothetical solution (VMs, storage, networking) and get a pre-deploy monthly estimate. Purview is data governance, Service Health reports outage status, and Resource Graph is for querying existing resources.

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How many essential characteristics does NIST define for cloud computing?

  1. Five characteristics
  2. Four characteristics
  3. Three characteristics
  4. Six characteristics
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Correct answer: A. Five characteristics

NIST SP 800-145 defines 5 essential characteristics: on-demand self-service, broad network access, resource pooling, rapid elasticity, measured service.

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AWS EC2 is an example of which cloud service model?

  1. SaaS (Software as a Service)
  2. PaaS (Platform as a Service)
  3. IaaS (Infrastructure as a Service)
  4. FaaS (Function as a Service)
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Correct answer: C. IaaS (Infrastructure as a Service)

EC2 (Elastic Compute Cloud) provides virtual machines where YOU manage the OS, runtime, and apps. This is the classic Infrastructure-as-a-Service (IaaS) model.

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