SC-100 Certification Practice Question #191

Question

You have a Microsoft 365 E5 subscription that uses Microsoft Teams.

Your company has an investment department and a research department. Each department has a compliance team.

You are designing a Microsoft Purview Information Barriers (IBs) solution to restrict communication between the departments. The solution must meet the following requirements:

•	The employees in each department must only be able to communicate with the employees in their respective department.
•	The employees on the compliance team of each department must be able to communicate with the employees on the compliance team of the other department.

What is the minimum number of segments and IB policies required? To answer, select the appropriate options in the answer area.

NOTE: Each correct selection is worth one point.

Accepted Answer

Information Barriers segments group users by attribute, and IB block policies are one-directional, so each two-way restriction needs two policies. Putting both departments' compliance teams into a single shared segment lets them communicate with each other while the two departmental segments stay isolated. That yields the minimum of three segments: Investment, Research, and Compliance. Blocking communication between Investment and Research requires one policy per direction — two policies total. No block is needed for the Compliance segment because it must reach both departments' compliance staff. MS Learn explicitly states that blocking communication between two segments requires defining two policies, one for each direction, confirming the count. Both community comments agree; confidence is held at 88 because no official Suggested Answer is recorded for this HOTSPOT.

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