Cloud concepts
36 free practice questions with explanations
PassNova has 36 free Microsoft Azure Fundamentals (AZ-900) practice questions on Cloud concepts, each with a clear explanation. Practise them in the browser with instant feedback — 100% free, no sign-up, on any device. Updated for 2026.
Cloud concepts: example questions & answers
Here are 6 example questions from this topic. Practise the full set of 36 free in the browser.
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What is the primary characteristic of cloud computing's consumption-based (pay-as-you-go) model?
- A You pay a fixed annual fee regardless of usage
- B You pay only for the resources you actually use ✓
- C You must purchase resources in three-year blocks
- D You pay only when your application is profitable
Answer: The consumption-based model means you pay only for the resources you use, with no upfront cost, helping convert capital expenditure into operational expenditure.
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Which cloud benefit describes the ability to quickly add or remove resources to match changing demand?
- A Scalability ✓
- B Disaster recovery
- C Geo-distribution
- D Latency
Answer: Scalability is the ability to increase or decrease resources to meet demand. It can be vertical (scaling up) or horizontal (scaling out).
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In the shared responsibility model, who is always responsible for protecting the physical datacenters?
- A The customer
- B The cloud provider ✓
- C A third-party auditor
- D It varies by service tier
Answer: The cloud provider (Microsoft) is always responsible for the physical security of datacenters, hosts, and the physical network, regardless of the service model.
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Which cloud deployment model combines on-premises infrastructure with a public cloud?
- A Public cloud
- B Private cloud
- C Hybrid cloud ✓
- D Community cloud
Answer: A hybrid cloud combines public cloud and private/on-premises infrastructure, allowing data and applications to be shared between them.
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Which term describes a cloud system's ability to remain operational during a component failure?
- A Elasticity
- B High availability ✓
- C Agility
- D Scalability
Answer: High availability ensures a service remains accessible and operational with minimal downtime, often by using redundant resources across fault domains.
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What does CapEx (capital expenditure) refer to in a cloud financial context?
- A Ongoing costs for services consumed over time
- B An upfront spend on physical infrastructure that is deducted over time ✓
- C A discount applied to reserved resources
- D The cost of data egress between regions
Answer: CapEx is an upfront expenditure on physical assets like servers and datacenters. Cloud computing favors OpEx, where you pay for services as you consume them.