Exact Data Match Classifier Usage in Purview Policies

SC-401 By islever Editorial Last updated

Create and configure data loss prevention policies

Short answer

C Exact Data Match classifiers are supported in Microsoft Purview Data Loss Prevention and Insider Risk Management policies.

Question

You have a Microsoft 365 E5 subscription that has a Microsoft Purview exact data match (EDM) classifier named EDM1.
You plan to create the Microsoft Purview policies shown in the following table.
Exhibit: Exact Data Match Classifier Usage in Purview Policies
Which policies can use EDM1?
  1. DLP1 only
  2. Retention1 only
  3. DLP1 and Insider1 only Correct Answer
  4. Insider1 and Retention1 only
  5. DLP1, Insider1, and Retention1

Key Takeaways

The exam tests knowledge of Exact Data Match (EDM) SIT support scope, with the common trap being the incorrect assumption that retention policies also support EDM-based conditions.

This question tests the supported services for Exact Data Match (EDM) sensitive information types in Microsoft Purview. The correct policies that can utilize EDM1 are DLP and Insider Risk Management.

Common mistake: Many candidates incorrectly select option A (DLP only), mistakenly believing that EDM classifiers are exclusively used for Data Loss Prevention policies.

Expert Analysis

Why the Answer Is Correct

Exact Data Match (EDM) Sensitive Information Types (SITs) are specifically designed to identify exact matches of data against a reference dataset. According to Microsoft documentation, EDM SITs are supported in Microsoft Purview Data Loss Prevention (including auto-labeling) and Microsoft Purview Insider Risk Management policies. Therefore, both DLP1 and Insider1 can use EDM1.

Why the Other Options Are Wrong

Retention policies do not support EDM-based SITs as conditions; they typically rely on standard content types or custom keywords. Since Retention1 cannot use EDM1, any option including it (B, D, E) is incorrect. Option A is incorrect because it omits Insider Risk Management, which is a valid consumer of EDM SITs.

Community Comment Notes

Community consensus strongly supports option C. As noted by user 'rvln7', the official documentation lists "Insider Risk Management" alongside DLP as a supported solution. User 'TDAC' emphasized that the source explicitly states EDMs can be used for Insider Risk policies but not Retention Policies.

Official Reference

https://learn.microsoft.com/en-us/purview/sit-get-started-exact-data-match-based-sits-overview

This link opens the official vendor documentation in a new tab.

Exam Strategy

Memorize the specific list of Microsoft Purview services that support Exact Data Match (EDM). Remember that while DLP is the primary use case, Insider Risk Management is also supported, whereas Retention and eDiscovery (for classification) have different constraints or support models.

Frequently Asked Questions

Why can't Retention policies use Exact Data Match?

Retention policies do not support EDM-based SITs as conditions. They rely on other methods like content match or labels.

Is EDM supported in eDiscovery?

While some sources mention eDiscovery, the primary supported configurations for EDM SITs are DLP and Insider Risk Management for policy enforcement.

More SC-401 FAQ →

Discussion 8 contributions

Compiled from public community threads and reader submissions, lightly edited for clarity. Handles and vote tallies are shown as recorded, and comments reflect the views of individual contributors.

From public community threads 8

  1. deeptha92 👍 15 Answered C
    EDM SITs can be used in: Microsoft Purview Data Loss Prevention Auto-labeling (service and client side) Microsoft Purview Insider Risk Management policies Microsoft Purview eDiscovery Microsoft Purview Insider Risk Management Microsoft Defender for Cloud Apps
  2. rvln7 👍 2 Answered C
    C is CORRECT Services that EDM supports: - Microsoft Purview Data Loss Prevention - Microsoft Defender for Clooud Apps - Auto-labeling (service-side)\ - Customer Managed Key - eDiscovery - Insider Risk Management https://learn.microsoft.com/en-us/purview/sit-learn-about-exact-data-match-based-sits#supported-solutions
  3. jorgs4 👍 2 Answered A
    EDM classifiers are used exclusively in data loss prevention (DLP) policies. They are not supported in retention policies or Insider Risk.
  4. kollyp2000 👍 1 Answered C
    Where EDM can be used Learn: “EDM SITs can be used in: Microsoft Purview Data Loss Prevention Auto-labeling (service and client side) Microsoft Purview Insider Risk Management Microsoft Purview eDiscovery Microsoft Defender for Cloud Apps” Retention isn’t on the list. Source: Get started with exact data match sensitive information types
  5. TDAC 👍 1
    ^this is incorrect. Answer is C. It literally says right here EDM's can be used for Insider Risk policies. https://learn.microsoft.com/en-us/purview/sit-get-started-exact-data-match-based-sits-overview They cannot be used for Retention Policies.
Show 3 more comments
  1. DemonSquirell 👍 1 Answered C
    "Services that EDM supports" - https://learn.microsoft.com/en-gb/purview/sit-learn-about-exact-data-match-based-sits#services-that-edm-supports
  2. tila_s 👍 1 Answered A
    EDM SITs can be used in: Microsoft Purview DLP Auto-labeling (service side only) Microsoft Defender for Cloud Apps
  3. mlstud 👍 1 Answered C
    Retention policies in Microsoft Purview do not support EDM-based SITs as conditions

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