This AZ-900 practice question tests your understanding of describe cloud concepts. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A company is considering moving its on-premises workloads to Azure. The CFO wants to understand how Azure pricing works. Which pricing model allows them to pay only for what they use, with no upfront costs or termination fees?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Pay-as-you-go
Option C (Pay-as-you-go) is correct because it is the Azure pricing model that charges customers only for the resources they consume, with no upfront commitment or termination fees. This model provides maximum flexibility, allowing the company to scale usage up or down as needed without financial penalties, directly addressing the CFO's requirement for a usage-based cost structure.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
Reserved instances
Why it's wrong here
Reserved instances require a prepaid commitment for a 1- or 3-year term, providing a discount but not a pay-as-you-go model.
✗
Spot VMs
Why it's wrong here
Spot VMs offer lower cost but can be evicted by Azure when capacity is needed; they are not a consistent pay-as-you-go model.
✓
Pay-as-you-go
Why this is correct
Pay-as-you-go charges for resources consumed (e.g., compute hours, storage) with no upfront cost or termination fee, offering full flexibility.
Related concept
Read the scenario before looking for a memorised answer.
✗
Hybrid Benefit
Why it's wrong here
Azure Hybrid Benefit is a licensing discount program for certain Microsoft software, not a pricing model for general resource consumption.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse Spot VMs with pay-as-you-go because both have no upfront cost, but they overlook that Spot VMs can be evicted with short notice, which violates the 'no termination fees' requirement in a different way—by terminating the service itself, not charging a fee.
Detailed technical explanation
How to think about this question
Pay-as-you-go pricing in Azure is metered per second for compute resources (e.g., VMs, App Service) and per unit for storage and networking, with billing calculated based on actual consumption. This model is ideal for variable workloads, dev/test environments, or short-term projects where cost predictability is less critical than flexibility. Under the hood, Azure's billing system aggregates usage metrics from resource providers and applies the pay-as-you-go rate card, which is publicly available via the Azure Pricing Calculator.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
TExam Day Tips
→Watch for words such as best, first, most likely and least administrative effort.
→Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A startup's cloud architect reviews their monthly bill and notices costs are higher than expected for a long-running batch job. Switching from on-demand instances to Reserved Instances — or using Spot/Preemptible VMs — can reduce compute costs by up to 72 %. Questions like this test whether you understand the tradeoffs between commitment, flexibility, and cost across cloud pricing models.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this AZ-900 question in full detail.
Describe cloud concepts — This question tests Describe cloud concepts — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Pay-as-you-go — Option C (Pay-as-you-go) is correct because it is the Azure pricing model that charges customers only for the resources they consume, with no upfront commitment or termination fees. This model provides maximum flexibility, allowing the company to scale usage up or down as needed without financial penalties, directly addressing the CFO's requirement for a usage-based cost structure.
What should I do if I get this AZ-900 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Question Discussion
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