MS-900 Practice Question: Describe security, compliance, privacy, and trust in Microsoft 365
A company uses Microsoft Purview Communication Compliance to detect inappropriate messages. Which action can an administrator take after reviewing a flagged message?
⚠ Common exam trap
The trap is conflating Communication Compliance with other Purview solutions like Data Loss Prevention or Retention; candidates may think any Purview action can be taken from a Communication Compliance case.
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
✓
Resolve the case with a notification to the sender
In Microsoft Purview Communication Compliance, after a reviewer investigates a flagged message, they can resolve the case by taking actions such as notifying the sender, escalating, or marking as false positive. Resolving with a notification to the sender is a standard remediation action. Retention policies and DLP policies are separate Purview solutions and cannot be applied directly from a Communication Compliance case.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Apply a retention policy to the message
Why it's wrong here
Retention policies govern how long content is kept, not the outcome of a reviewed Communication Compliance alert. It is tempting because retention policies are configured in Microsoft Purview, but they apply to lifecycle management, not remediation of flagged messages.
- ✗
Create a DLP policy based on the message
Why it's wrong here
DLP policies are authored in advance to prevent sharing of sensitive data; they are not an action taken against an individual reviewed message. It is tempting because both features live in Microsoft Purview, yet DLP addresses data-loss prevention, not communication-compliance remediation.
- ✓
Resolve the case with a notification to the sender
Why this is correct
Resolving with a notification lets the administrator close the flagged message and simultaneously inform the sender of the outcome, satisfying Communication Compliance's remediation workflow. This action records the resolution while alerting the involved user, rather than escalating or merely dismissing the alert.
- ✗
Recall the message from the recipient
Why it's wrong here
Communication Compliance reviews messages already delivered; it cannot retract them from recipients' mailboxes. It is tempting because recalling a message feels like direct remediation, but recall is an Outlook/Exchange feature, unrelated to Purview's review workflow.
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JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed September 2026 · checked against the official Microsoft exam blueprint
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