Quick Answer
The correct answer is to secure cloud applications and data, as Microsoft Defender for Cloud Apps functions as a Cloud Access Security Broker (CASB). This means its primary purpose is to act as a security intermediary between users and cloud services, providing visibility into shadow IT, enforcing data loss prevention policies, and offering threat protection for sanctioned and unsanctioned cloud apps. On the SC-900 exam, this concept tests your understanding of how a CASB fits into Microsoft’s broader security stack, often appearing in questions that contrast it with tools like Microsoft Entra ID or Microsoft Purview. A common trap is confusing Defender for Cloud Apps with a simple firewall or endpoint tool; remember, it specifically brokers access to cloud apps, not on-premises resources. To recall its role, think of the acronym “VDP” for Visibility, Data controls, and Protection—the three pillars of a CASB that directly support securing cloud applications and data.
This SC-900 practice question tests your understanding of describe the capabilities of microsoft security solutions. 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.
What is the primary purpose of Microsoft Defender for Cloud Apps?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
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.
Monitor network traffic
Why wrong: That is more for network security tools.
Manage mobile devices
Why wrong: That is Intune.
Protect on-premises servers
Why wrong: It is for cloud apps.
Secure cloud applications and data
Correct: It acts as a CASB for cloud apps.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Secure cloud applications and data
Microsoft Defender for Cloud Apps is a Cloud Access Security Broker (CASB) that provides visibility, data controls, and threat protection for cloud applications.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
Monitor network traffic
Why it's wrong here
That is more for network security tools.
Manage mobile devices
Why it's wrong here
That is Intune.
Protect on-premises servers
Why it's wrong here
It is for cloud apps.
Secure cloud applications and data
Why this is correct
Correct: It acts as a CASB for cloud apps.
Clue confirmation
The clue word "primary" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Detailed technical explanation
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
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.
What to study next
Identify which SC-900 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
Describe the capabilities of Microsoft security solutions — study guide chapter
Learn the concepts, then practise the questions
Describe the capabilities of Microsoft security solutions practice questions
Targeted practice on this topic area only
All SC-900 questions
1,411 questions across all exam domains
Microsoft Security, Compliance, and Identity Fundamentals SC-900 study guide
Full concept coverage aligned to exam objectives
SC-900 practice test guide
How to use practice tests most effectively before exam day
Related practice questions
Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.
Practise SC-900 questions linked to Describe the capabilities of Microsoft Entra.
Practise SC-900 questions linked to Describe the capabilities of Microsoft security solutions.
Practise SC-900 questions linked to Describe the capabilities of Microsoft compliance solutions.
Practise SC-900 questions linked to Describe the concepts of security, compliance, and identity.
Practise SC-900 questions linked to SC-900 fundamentals.
Practise SC-900 questions linked to SC-900 scenario.
Practise SC-900 questions linked to SC-900 troubleshooting.
Practice this exam
Short sessions build daily habit. Longer sessions build exam-day stamina. Try a timed session to simulate real conditions.
FAQ
Describe the capabilities of Microsoft security solutions — This question tests Describe the capabilities of Microsoft security solutions — Read the scenario before looking for a memorised answer..
The correct answer is: Secure cloud applications and data — Microsoft Defender for Cloud Apps is a Cloud Access Security Broker (CASB) that provides visibility, data controls, and threat protection for cloud applications.
Identify which SC-900 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
Yes — watch for: "primary". Asks for the main purpose or function, not a secondary benefit. Eliminate answers that describe side-effects or partial functions.
Read the scenario before looking for a memorised answer.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
Keep practising
Last reviewed: Jun 21, 2026
This SC-900 practice question is part of Courseiva's free Microsoft certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the SC-900 exam.
Question Discussion
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
Sign in to join the discussion.