This MS-900 practice question tests your understanding of describe cloud concepts. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. 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 cloud user can access their files from a work desktop, a personal laptop at home, and a mobile phone while traveling. Which essential characteristic of cloud computing does this scenario best illustrate?
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.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Broad network access
Broad network access is the correct answer because it describes the ability to access cloud resources from diverse client platforms (work desktop, personal laptop, mobile phone) over the network using standard protocols such as HTTPS, SSH, or VPN. This characteristic ensures that services are available from any location with internet connectivity, not just from a single device or network.
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.
✗
On-demand self-service
Why it's wrong here
On-demand self-service means a user can provision resources automatically, not that they can access from multiple devices.
✓
Broad network access
Why this is correct
Broad network access describes the ability to access cloud services from a wide range of devices over the network.
Clue confirmation
The clue word "best" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
Resource pooling
Why it's wrong here
Resource pooling refers to the provider serving multiple customers from shared physical resources, not multi-device access.
✗
Rapid elasticity
Why it's wrong here
Rapid elasticity involves scaling resources dynamically, not the variety of access devices.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates confuse 'access from multiple devices' with 'on-demand self-service' because both involve user-initiated actions, but on-demand self-service specifically means provisioning resources without provider intervention, not multi-device connectivity.
Detailed technical explanation
How to think about this question
Broad network access is defined in NIST SP 800-145 as capabilities available over the network and accessed through standard mechanisms that promote use by heterogeneous thin or thick client platforms (e.g., mobile phones, tablets, laptops, and workstations). Under the hood, this relies on protocols like HTTP/2, TLS 1.3, and RESTful APIs to ensure secure, low-latency access across varying network conditions. A real-world scenario is a user syncing OneDrive files on a corporate VPN from a personal device, where the cloud storage service must authenticate and authorize access regardless of the client OS or browser.
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 company's IT admin needs to give a contractor read-only access to production logs without sharing account credentials. Using role-based access control (RBAC) and temporary scoped permissions — not a permanent shared password — is the correct pattern. Questions like this test whether you can apply least-privilege access across cloud identity services.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this MS-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: Broad network access — Broad network access is the correct answer because it describes the ability to access cloud resources from diverse client platforms (work desktop, personal laptop, mobile phone) over the network using standard protocols such as HTTPS, SSH, or VPN. This characteristic ensures that services are available from any location with internet connectivity, not just from a single device or network.
What should I do if I get this MS-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". 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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Question Discussion
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