SC-401

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Last updated
August 12, 2026
Product
SC-401
Exam
SC-401
Vendor
Microsoft

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Microsoft 365 Information Security

SC-401 Practice Test: Protect Data, Enforce Policy, Respond to Risk

Prepare around Microsoft Purview information protection, data loss prevention, retention, insider risk, alerts, and investigation workflows.

Role focus: SC-401 is an administration exam. Expect to connect business data-protection requirements with deployable policies, permissions, labels, controls, monitoring, and response actions across Microsoft 365.

The three-pillar blueprint

1. Information protection

Discover sensitive data, configure sensitive information types and classifiers, publish sensitivity labels, apply encryption, and extend protection to endpoints and repositories.

2. DLP and retention

Design policy scope, rules, actions, exceptions, alerts, testing, records controls, event-based retention, and disposition processes.

3. Risks and activities

Work with insider risk, communication compliance, activity exploration, alerts, investigations, audit, and information-security incidents.

Microsoft currently weights each pillar at approximately 30–35%, so preparation should be balanced. Ignoring one pillar can create a large readiness gap.

Translate every question into a policy decision

When a scenario looks complicated, separate it into five parts: the data being protected, where it lives, who can access it, what action should occur, and how administrators will detect or investigate the event. That method helps distinguish similar controls.

  • Classification: What identifies the content—built-in type, custom type, exact data match, fingerprint, or trainable classifier?
  • Protection: Does the requirement need a label, encryption, content marking, container settings, or endpoint control?
  • Lifecycle: Should content be retained, deleted, declared as a record, reviewed, or placed under event-based retention?
  • Risk: Is the problem data leakage, insider activity, communication risk, policy tuning, or incident investigation?

Administrator lab checklist

  1. Explore Data Explorer and Content Explorer and understand the permissions they require.
  2. Create a test sensitivity label and a publishing policy; observe user-facing behavior.
  3. Build a DLP policy in test mode, review matches and alerts, then explain when simulation is safer than immediate enforcement.
  4. Compare retention policies, retention labels, records management, and disposition review.
  5. Review insider-risk prerequisites, indicators, privacy controls, cases, and alert triage.
  6. Practice locating evidence through the Microsoft Defender and Microsoft Purview portals.
Preparation principle: product names are not enough. You should be able to choose a control, configure its scope, predict its effect on users and data, and explain how to monitor the result.
Independent educational resource: This practice material is not affiliated with, endorsed by, sponsored by, or approved by Microsoft or GitHub. Product and certification names belong to their respective owners. It does not contain official exam questions and does not guarantee a passing result. Review Microsoft’s official study guide before relying on exam details. Browse our Microsoft certification practice tests for other available learning resources.