Question 116 of 1,031

Describe cloud concepts →easyMultiple ChoiceObjective-mapped

Quick Answer

The correct answer is that the company can replace large upfront capital expenditures with variable monthly payments based on actual usage. This is because migrating from on-premises physical servers to Azure virtual machines fundamentally shifts the cost model from Capital Expenditure (CapEx)—where you pay the full hardware cost upfront every three years—to Operational Expenditure (OpEx), where you pay only for the compute, storage, and network resources you actually consume on a monthly basis. This CapEx to OpEx shift in cloud computing aligns costs directly with usage, avoiding large upfront investments and enabling better cash flow management. On the AZ-900 exam, this concept tests your understanding of the primary financial benefit of cloud adoption, often appearing in scenario-based questions that contrast traditional hardware purchases with pay-as-you-go models. A common trap is confusing OpEx with lower total cost; remember, the key is eliminating large upfront payments, not necessarily reducing overall spend. Memory tip: think “CapEx = Capital, big upfront check; OpEx = Operational, pay as you go.”

AZ-900 Describe cloud concepts Practice Question

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 traditionally purchased physical servers and networking equipment every three years, paying the full cost upfront. They are now migrating their workloads to Azure virtual machines. The finance team wants to understand the primary financial benefit of the new cloud model. Which statement best describes this benefit?

Clue words in this question

Noticing these words before you look at the options changes how you read each choice.

Clue: "best"
Why it matters: Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
Clue: "primary"
Why it matters: Asks for the main purpose or function, not a secondary benefit. Eliminate answers that describe side-effects or partial functions.

Question 1easymultiple choice

Full question →

A
The company can stop paying for electricity and cooling because Azure includes those costs in the monthly bill.
Why wrong: While Azure does include the cost of power and cooling in its service fees, this is a peripheral benefit. The fundamental financial shift is from upfront capital spending to variable operational spending, not just the elimination of utility costs.
B
The company can replace large upfront capital expenditures with variable monthly payments based on actual usage.
This correctly describes the consumption-based model (OpEx) of cloud computing. Instead of buying hardware every few years, you pay only for what you use, which improves cash flow and aligns costs with business activity.
C
The company will pay a fixed monthly fee for each virtual machine, regardless of whether it is running or stopped.
Why wrong: Azure bills for VMs based on actual run time. A stopped (deallocated) VM incurs only storage costs, not compute charges. A fixed monthly fee per VM regardless of state is inaccurate.
D
The company can reduce its overall IT spending by 50% or more when moving to the cloud.
Why wrong: Cloud migration can reduce costs in some scenarios, but a guaranteed 50% reduction is unrealistic. The actual savings depend on workload optimization, reserved instances, and licensing. This statement presents an unsupported claim.

Full breakdown with real-world context →

Answer choices

Why each option matters

Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.

Correct answer & explanation

✓

The company can replace large upfront capital expenditures with variable monthly payments based on actual usage.

Option B is correct because migrating from on-premises physical servers to Azure virtual machines shifts the cost model from Capital Expenditure (CapEx) — paying the full hardware cost upfront every three years — to Operational Expenditure (OpEx), where you pay only for the compute, storage, and network resources you actually consume on a monthly basis. This aligns costs directly with usage, avoiding large upfront investments and enabling better cash flow management.

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.

✗
The company can stop paying for electricity and cooling because Azure includes those costs in the monthly bill.
Why it's wrong here
While Azure does include the cost of power and cooling in its service fees, this is a peripheral benefit. The fundamental financial shift is from upfront capital spending to variable operational spending, not just the elimination of utility costs.
✓
The company can replace large upfront capital expenditures with variable monthly payments based on actual usage.
Why this is correct
This correctly describes the consumption-based model (OpEx) of cloud computing. Instead of buying hardware every few years, you pay only for what you use, which improves cash flow and aligns costs with business activity.
Clue confirmation
The clue words "best", "primary" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
The company will pay a fixed monthly fee for each virtual machine, regardless of whether it is running or stopped.
Why it's wrong here
Azure bills for VMs based on actual run time. A stopped (deallocated) VM incurs only storage costs, not compute charges. A fixed monthly fee per VM regardless of state is inaccurate.
✗
The company can reduce its overall IT spending by 50% or more when moving to the cloud.
Why it's wrong here
Cloud migration can reduce costs in some scenarios, but a guaranteed 50% reduction is unrealistic. The actual savings depend on workload optimization, reserved instances, and licensing. This statement presents an unsupported claim.

Common exam traps

Common exam trap: answer the scenario, not the keyword

The trap here is that candidates often confuse the 'pay-as-you-go' model with a simple reduction in total cost, when the actual exam focus is on the shift from CapEx to OpEx as the primary financial benefit of cloud computing.

Trap categories for this question

Scenario analysis trap
Cloud migration can reduce costs in some scenarios, but a guaranteed 50% reduction is unrealistic. The actual savings depend on workload optimization, reserved instances, and licensing. This statement presents an unsupported claim.

Detailed technical explanation

How to think about this question

Under the hood, Azure bills for VMs based on per-second usage (for most VM series) while the VM is in the 'Running' state, meaning you pay only for the exact time the VM is allocated and consuming CPU/memory resources. This contrasts with the traditional model where hardware is purchased upfront and depreciated over three years, regardless of utilization — a key driver of the CapEx-to-OpEx shift. In a real-world scenario, a company running batch processing jobs only at night could save significantly by deallocating VMs during idle hours, a flexibility impossible with physical servers.

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.

What to study next

Got this wrong? Here's your next step.

Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.

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FAQ

Questions learners often ask

What does this AZ-900 question test?

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: The company can replace large upfront capital expenditures with variable monthly payments based on actual usage. — Option B is correct because migrating from on-premises physical servers to Azure virtual machines shifts the cost model from Capital Expenditure (CapEx) — paying the full hardware cost upfront every three years — to Operational Expenditure (OpEx), where you pay only for the compute, storage, and network resources you actually consume on a monthly basis. This aligns costs directly with usage, avoiding large upfront investments and enabling better cash flow management.

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.

Are there clue words in this question I should notice?

Yes — watch for: "best", "primary". Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.

What is the key concept behind this question?

Read the scenario before looking for a memorised answer.

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Same concept, more angles

2 more ways this is tested on AZ-900

These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.

Variation 1. A company transitions from on-premises IT, where they purchased servers upfront, to Azure, where they pay a monthly subscription for virtual machines. This is an example of moving from capital expenditure (CapEx) to which type of expenditure?

easy

✓ A.Operating expenditure (OpEx)
B.Variable expenditure
C.Consumption-based expenditure
D.Fixed expenditure

Why A: Moving from purchasing servers upfront (CapEx) to paying a monthly subscription for Azure virtual machines shifts costs to an operational expense (OpEx). This is because Azure's pay-as-you-go model charges for compute resources as they are consumed, with no large initial investment, aligning with OpEx accounting where costs are incurred and deducted in the same period.

Variation 2. A manufacturing company traditionally purchased and maintained its own servers, paying a large upfront capital expense (CapEx) for hardware that was expected to last five years. After migrating its workloads to Azure virtual machines, the company now receives a monthly invoice that reflects only the compute and storage resources actually consumed during that month. There are no upfront payments. This change in cost structure best illustrates which benefit of cloud computing?

medium

A.Scalability to handle variable demand
B.High availability through geographic redundancy
✓ C.Consumption-based pricing model
D.Resource pooling through multi-tenancy

Why C: The scenario describes a shift from a large upfront capital expenditure (CapEx) for hardware to a monthly invoice based on actual compute and storage consumption. This directly illustrates the consumption-based pricing model, where you pay only for the resources you use (e.g., VM hours, storage GB-months) with no upfront costs. This is a core financial benefit of cloud computing, enabling operational expenditure (OpEx) instead of CapEx.

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