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MS-721 Exam Questions & Answers

Collaboration Communications Systems Engineer  •  Microsoft

274 Questions 100 min Updated Jul 2026 99% Pass Rate
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About MS-721 Exam

The Microsoft MS-721 Collaboration Communications Systems Engineer certification validates your expertise in designing, deploying, and managing Microsoft Teams and Skype for Business solutions. This comprehensive exam assesses your knowledge of Teams architecture, voice solutions, meeting experiences, and hybrid connectivity. Candidates should demonstrate proficiency in configuring Teams Phone System, Direct Routing, and Audio Conferencing while managing user adoption and compliance requirements. The MS-721 is ideal for IT professionals, system administrators, and engineers who implement enterprise communication platforms and seek to advance their careers in collaborative technology infrastructure.

Effective preparation for the MS-721 exam requires strategic study resources, including updated exam dumps and practice tests that simulate real testing conditions. These materials help candidates identify knowledge gaps, understand question formats, and build confidence before attempting the certification. Practice tests covering Teams administration, security protocols, and troubleshooting scenarios enable learners to reinforce critical concepts and improve time management skills. By utilizing comprehensive study guides alongside hands-on lab experience with Microsoft Teams environments, candidates can maximize their success rates and earn credentials that demonstrate their capabilities to employers in the competitive IT job market.

Exam Topics & Objectives

Plan and design collaboration communications systems
30-35%
Configure and manage Teams Phone
25-30%
Configure and manage Teams Rooms and devices
25-30%
Configure and manage Teams meetings, webinars, and town halls
15-20%

4-Week Study Plan for MS-721

Week 1: Foundations and System Planning

  • Study core collaboration communications architecture and Microsoft Teams ecosystem overview
  • Review prerequisites for Teams Phone deployment including licensing requirements (Microsoft 365 E3/E5, Teams Phone)
  • Understand network topology design principles for Teams including bandwidth requirements and QoS
  • Learn about Direct Routing, Calling Plans, and Operator Connect as Teams Phone connection methods
  • Study hybrid identity and Azure AD requirements for Teams environments
  • Analyze case studies on designing collaboration systems for organizations of different sizes
  • Complete practice questions on planning and design concepts (target 80% accuracy)

Week 2: Teams Phone Configuration and Management

  • Deep dive into Teams Phone provisioning and setup procedures
  • Configure Direct Routing including SBC configuration, trunk settings, and call routing policies
  • Set up Calling Plans and manage phone number assignment and porting
  • Study call routing rules, voice routing policies, and emergency calling scenarios
  • Configure voice features including call forwarding, call transfer, call hold music, and parked calls
  • Learn user and resource account provisioning for auto attendants and call queues
  • Practice hands-on configuration in Teams admin center for phone settings and policies
  • Complete Teams Phone configuration labs and practice exams (target 85% accuracy)

Week 3: Teams Rooms, Devices, and Meeting Infrastructure

  • Study Teams Rooms hardware requirements and certification standards
  • Learn Teams Rooms deployment and provisioning procedures including resource accounts
  • Configure meeting room settings, device management, and room analytics
  • Understand Teams devices ecosystem: phones, displays, headsets, and their management policies
  • Study device firmware management and remote monitoring capabilities
  • Configure meeting settings including meeting policies, recording policies, and participant permissions
  • Learn webinar and town hall specific configurations and limitations
  • Practice device and room configuration scenarios in Teams admin center

Week 4: Meetings, Webinars, Town Halls, and Final Integration

  • Master Teams meeting policies, participant roles, and access control settings
  • Configure meeting features: recording, transcription, live captions, and chat controls
  • Study webinar configuration including registration, analytics, and attendee management
  • Learn town hall features including capacity limits, production management, and presenter controls
  • Understand meeting protection features including breakout rooms, end-to-end encryption, and watermarking
  • Study advanced features: Q&A, reactions, polls, and co-management scenarios
  • Review and integrate knowledge from all four exam domains through comprehensive case studies
  • Complete full-length practice exams covering all topics (target 90% accuracy or higher)
  • Review weak areas and perform final review on planning and design considerations

Sample MS-721 Questions

Practice with real exam-style questions. Reveal answers to verify your knowledge.

Q1 MultipleChoice

You have a Microsoft Teams Phone deployment that uses Direct Routing.

You plan to use Microsoft Power BI to analyze Call Quality Dashboard (CQD) data for the deployment.

You download the Power BI query templates for CQD from the Microsoft Download Center.

You need to use Power BI Desktop to review reports about PSTN calls that go through Direct Routing.

What should you do first?

Q2 MultipleChoice

You are adding new sites to your company.

The reporting team needs location-based reports in Microsoft Power B1 that include the subnet information of the new sites.

You need to add the information to Microsoft Teams.

What should you do?

Q3 MultipleChoice

You have a Microsoft learns deployment.

You need to run a town hall that meets the following requirements:

* Additional client software or network hardware must NOT be required.

* Video content must be distributed without affecting network performance.

* Automatic site and VPN detection must be supported.

* Automatic NAT/firewall traversal must be supported.

What should you include in the recommendation?

Q4 MultipleChoice

You are optimizing a network to better support voice and collaboration workloads in Microsoft Teams. When the users are at a specific corporate site, you need to prevent the users from adding video during calls. Solution: You run New-CsTeams-MeetingPolicy and set the -MediaBitRateKb parameter set to 1.

Does this meet the goal?

Q5 MultipleChoice

Your company has offices in Paris and London.

You are migrating from an on-premises PBX telephony solution to a Microsoft Teams Phone deployment that uses Direct Routing. You plan to use the existing telephony earner. The new solution will provide telephony services to users m both offices.

You need to recommend a solution that is the most resistant to possible failures. The solution must ensure that calls are routed through each user's respective office.

Which two actions should you include in the recommendation? Each correct answer presents part of the solution.

NOTE: Each correct selection is worth one point

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Frequently Asked Questions

The MS-721 is Microsoft's Collaboration Communications Systems Engineer Expert certification exam that validates skills in designing, deploying, and managing Microsoft Teams and Skype for Business solutions. This certification demonstrates advanced expertise in collaboration and communications infrastructure.

Microsoft recommends that candidates have at least 5 years of professional experience with unified communications and collaboration platforms, though there are no strict formal prerequisites. It's also beneficial to have passed related certifications like MS-720 or have hands-on experience with Teams administration and deployment.

The MS-721 exam typically costs $165 USD, though pricing may vary by region and through different testing channels. Check the official Microsoft Learn or Pearson VUE websites for current pricing in your location.

The exam covers planning and designing Teams infrastructure, managing Teams environments, implementing security and compliance, managing chat and team collaboration, and optimizing voice solutions. It also includes topics on meetings, live events, and integrations with other Microsoft 365 services.

The MS-721 exam is 120 minutes long and typically contains between 40-60 questions in various formats including multiple choice, drag-and-drop, and case studies. The exact number of questions may vary as Microsoft uses adaptive testing technology.
Exam Details
  • Exam CodeMS-721
  • VendorMicrosoft
  • Total Questions274
  • Duration100 min
  • LanguageEnglish
  • Last UpdatedJul 21, 2026
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