Microsoft MS-721 : Collaboration Communications Systems Engineer

Exam Code: MS-721

Exam Name: Collaboration Communications Systems Engineer

Updated: Oct 15, 2026

Q & A: 290 Questions and Answers

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Professionals who are interested in taking the Microsoft MS-721 certification exam should have prior experience in collaboration and communications systems engineering, as well as a strong understanding of networking and security concepts. Candidates who pass this certification exam will be recognized as experts in the field of collaboration and communications systems engineering and will be able to demonstrate their ability to design and implement solutions that enhance productivity and collaboration within an organization.

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Microsoft MS-721 (Collaboration Communications Systems Engineer (beta)) Certification Exam is a highly regarded certification exam that is designed to test the skills and knowledge of IT professionals who are responsible for designing and implementing collaboration and communication systems. The beta certification exam is currently being offered by Microsoft and is open to those who wish to test their skills in this area.

Reference: https://learn.microsoft.com/en-us/certifications/exams/ms-721/

Microsoft MS-721 Exam Syllabus Topics:

Section	Objectives
Topic 1: Plan and configure Microsoft Teams collaboration and communications systems	- Plan network requirements for Teams - Configure Teams policies and settings - Design Teams collaboration architecture
Topic 2: Implement security and compliance for Teams communications	- Configure compliance policies for Teams - Manage eDiscovery and audit capabilities
Topic 3: Configure and manage Microsoft Teams Phone	- Manage phone numbers and voice routing - Configure calling policies and auto attendants - Configure PSTN connectivity options
Topic 4: Configure meetings, conferencing, and collaboration experiences	- Configure meeting policies and settings - Manage audio/video conferencing - Configure webinar and live event experiences
Topic 5: Manage Teams devices and rooms	- Configure certified Teams devices - Deploy and manage Microsoft Teams Rooms
Topic 6: Monitor, troubleshoot, and optimize Teams communications	- Analyze usage and performance reports - Troubleshoot call quality and connectivity issues - Use Teams admin center monitoring tools

Microsoft Collaboration Communications Systems Engineer Sample Questions:

Question #1

You are deploying a Microsoft Teams Rooms on Windows device.
You have a file named Wallpaper.jpg that contains a company-branded wallpaper graphic.
You need to ensure that the device displays the company-branded wallpaper.
Which two actions should you perform? Each correct answer presents part of the solution.
NOTE: Each correct selection is worth one point.

A. Upload Wallpaper.jpg to a folder on the device.
B. Rename Wallpaper.jpg as Background.jpg.
C. Set the Teams Rooms theme to Default.
D. Upload Wallpaper.jpg to the global (Org-wide default) customization policy.
E. Set the Teams Rooms theme to Custom.

Reveal Solution Discussion 0

Correct Answer: A,E 🗳️

Question #2

Your company has offices in 10 countries. The company has a tenant dial plan configured for each country.
The company recently opened an office in a new country.
You need to create a new tenant dial plan that meets the unique dialing requirements of the new country.
What should you do?

A. From the Microsoft Teams admin center, select Voice, select Phone numbers and then select Add
B. Run the New-CsOnlineVoiceRoutingPolicy cmdlet.
C. Run the New-CsTenantDialPlan cmdlet.
D. From the Microsoft Teams admin center, select Voice, select Calling policies, and then select Add

Reveal Solution Discussion 0

Correct Answer: C 🗳️

Question #3

You have a Microsoft 365 E5 subscription that uses Microsoft Teams.
Users report that they receive spam phone calls from the following phone numbers:
* +15551113000
* +15551213000
* +15551123000
* +1 5551223000
You need to configure a policy to prevent calls from the numbers.
How should you complete the PowerShell command? To answer, select the appropriate options in the answer area.
NOTE: Each correct selection is worth one point.

Reveal Solution Discussion 0

Correct Answer:

Explanation:

Question #4

You have a Microsoft Teams deployment that contains a Teams Rooms on Windows device named Device1.
You need to ensure that Device1 can join third-party meetings. What should you do?

A. To Device1, import the X.509 certificate for the third-party meeting provider.
B. Create a device configuration profile
C. On Device 1. update the SkypeSettings.xml file.
D. Assign a Teams Rooms Pro license to Device1.

Reveal Solution Discussion 0

Correct Answer: C 🗳️

Question #5

You have a Microsoft 365 subscription that uses Microsoft Teams and contains the groups shown in the following table.

A user named User1 is a member of both Research and Marketing.
You have the meeting policies shown in the following table.

You have group policy assignments for the meeting policies as shown in the following table.

Which policies are assigned to User1?