This MS-900 practice question tests your understanding of describe security, compliance, privacy, and trust in microsoft 365. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. A key principle to apply: data classification identifies sensitive information using sensitive information types.. 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.
During requirements gathering, an IT manager says the organization must discover where sensitive information is stored across Microsoft 365. Microsoft security, identity, or compliance capability should it use?
Microsoft Planner
Why wrong: Planner manages tasks and does not provide this security or compliance control.
Microsoft Stream
Why wrong: Stream hosts video content and does not meet this requirement.
Microsoft Forms
Why wrong: Forms creates surveys and quizzes, not this security or compliance capability.
Data classification / Content explorer
Data classification and content explorer help identify sensitive information across locations.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Data classification / Content explorer
Data classification and Content explorer in Microsoft 365 Purview allow organizations to discover, classify, and monitor sensitive information across Exchange, SharePoint, OneDrive, and Teams. This capability uses trainable classifiers and sensitive information types to identify data like credit card numbers or PII, providing a unified view in Content explorer for compliance administrators. It directly meets the requirement to discover where sensitive information is stored.
Key principle: Data classification identifies sensitive information using sensitive information types.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
Microsoft Planner
Why it's wrong here
Planner manages tasks and does not provide this security or compliance control.
Microsoft Stream
Why it's wrong here
Stream hosts video content and does not meet this requirement.
Microsoft Forms
Why it's wrong here
Forms creates surveys and quizzes, not this security or compliance capability.
Data classification / Content explorer
Why this is correct
Data classification and content explorer help identify sensitive information across locations.
Related concept
Data classification identifies sensitive information using sensitive information types.
Common exam traps
The trap here is that candidates may confuse productivity tools (Planner, Stream, Forms) with compliance capabilities, assuming any Microsoft 365 app can discover sensitive data, when only Purview features like Data classification and Content explorer are designed for this purpose.
Detailed technical explanation
Content explorer relies on the Microsoft 365 Purview compliance portal and uses the same sensitive information types (e.g., predefined regex patterns for credit card numbers) and trainable classifiers that power auto-labeling and DLP policies. Under the hood, it indexes content via the Microsoft 365 search schema and applies machine learning models to detect patterns, with results aggregated from workloads like Exchange Online, SharePoint Online, and OneDrive for Business. In a real-world scenario, an organization might use Content explorer to audit where GDPR-regulated data resides before implementing retention labels or DLP rules.
Key takeaway
Data classification identifies sensitive information using sensitive information types.
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
Review data classification identifies sensitive information using sensitive information types., then practise related MS-900 questions on the same topic to reinforce the concept.
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FAQ
Describe security, compliance, privacy, and trust in Microsoft 365 — This question tests Describe security, compliance, privacy, and trust in Microsoft 365 — Data classification identifies sensitive information using sensitive information types..
The correct answer is: Data classification / Content explorer — Data classification and Content explorer in Microsoft 365 Purview allow organizations to discover, classify, and monitor sensitive information across Exchange, SharePoint, OneDrive, and Teams. This capability uses trainable classifiers and sensitive information types to identify data like credit card numbers or PII, providing a unified view in Content explorer for compliance administrators. It directly meets the requirement to discover where sensitive information is stored.
Review data classification identifies sensitive information using sensitive information types., then practise related MS-900 questions on the same topic to reinforce the concept.
Data classification identifies sensitive information using sensitive information types.
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Last reviewed: Jun 11, 2026
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