Microsoft MS-721 Practice Exams
Last updated on Oct 23,2026- Exam Code: MS-721
- Exam Name: Collaboration Communications Systems Engineer
- Certification Provider: Microsoft
- Latest update: Oct 23,2026
HOTSPOT
Your company has a Microsoft Teams Phone deployment and the following departments:
• HR
• Marketing
You need to configure Teams to meet the following requirements:
• Only users in the HR department must have spam filtering enabled.
• All outbound PSTN calls must replace the caller ID with the company’s auto attendant number.
• Only users in the marketing department must have Inbound calls can be routed to call groups disabled.
What is the minimum number of caller ID policies and calling policies you should configure? To answer, select the appropriate options in the answer area. NOTE: Each correct selection is worth one point.

Topic 4, Misc. Questions
You have a Microsoft Teams Phone deployment
You use Direct Routing with a Survivable Branch Appliance (SBA) at a site.
The site experiences an extended internet outage.
Which three PSTN calling scenarios are possible during the outage? Each coned answer presents a complete solution. NOTE: Each correct selection is worth one point.
- A . dynamic emergency calling
- B . outbound PSTN calls
- C . inbound PSTN calls
- D . call transfer of PSTN calls
- E . hold and resume of PSTN calls
Note: This question is part of a series of questions that present the same scenario. Each question in the series contains a unique solution that might meet the stated goals. Some question sets might have more than one correct solution, while others might not have a correct solution.
After you answer a question in this section, you will NOT be able to return to it. As a result, these questions will not appear in the review screen.
Your company uses configuration profiles to manage Microsoft Teams-certified IP phones. The Standard configuration profile is applied to the IP phones.
The help desk receives reports that several user phones fail to lock automatically after the timeout period.
You need to verify whether the configuration profile is applied to the problematic phones.
Solution: From Devices in the Microsoft Teams admin center, you select Phones, find the reported phones, and review the Configuration profile column.
Does this meet the goal?
- A . Yes
- B . No
You have a Microsoft 365 tenant that has Modern authentication enabled for an services Multi-factor
authentication (MFA) is enforced for all users.
You are deploying Microsoft Teams Rooms.
The first time you attempt to sign in to a Teams Rooms, you receive an error message indicating that the device cannot sign in to Teams.
You verify that Modern authentication is enabled in Teams Rooms.
What prevents you from signing in?
- A . The Microsoft Authenticates app is not configured for the Teams Rooms account-
- B . The Teams Rooms account is not licensed for Microsoft intune.
- C . Teams Rooms must be domain joined first.
- D . MFA is unsupported In reams Rooms.
DRAG DROP
From Voice in the Microsoft Teams admin center, you select Operators and add an operator.
You need to enable users for Microsoft Teams Phone.
Which three actions should you perform in sequence? To answer, move the appropriate actions from the list of actions to the answer area and arrange them in the correct order.

DRAG DROP
You have a Microsoft 365 E5 subscription.
You have a phone that uses Microsoft Skype for Business 3PIP firmware and is connected to an on-premises Skype for Business 2019 environment.
You plan to transition from Enterprise Voice in Skype for Business Server to Microsoft Teams Phone with Calling Plan.
You need to ensure that the phone can make and receive calls by using Teams.
Which three actions should you perform in sequence? To answer, move the appropriate actions from the list of actions to the answer area and arrange them in the correct order.

Note: This question is part of a series of questions that present the same scenario. Each question in the series contains a unique solution that might meet the stated goals. Some question sets might have more than one correct solution, while others might not have a correct solution.
After you answer a question in this section, you will NOT be able to return to it. As a result, these questions will not appear in the review screen.
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-CsTeamsMeetingPolicy and set the -MediaBitRateKb parameter to 1.
Does this meet the goal?
- A . Yes
- B . No
You are evaluating the implementation of the technical requirements for the sales team.
After the implementation of the requirements, which meeting feature will the sales team be able to use during Teams meetings?
- A . meeting reactions
- B . PowerPoint Live
- C . meeting recording
- D . Whiteboard
You are enabling users for Direct Routing.
You already assigned licenses to the users.
You need to complete the user setup.
Which two cmdlets should you run? Each correct answer presents part of the solution. NOTE: Each correct selection is worth one point.
- A . Set-CsOnlineVoiceUser
- B . Grant-CsOnlineVoiceRoutinePolicy
- C . Set-CsUser
- D . Grant-CsVoicePolicy
- E . Set-CsUSerPstnSettings
You need to provide Microsoft learns users with the ability to perform PSIN calling through a Session Border Controller (SBC).
Which licenses can you assign to achieve the goal?
- A . Microsoft 365 £3 or Microsoft 365 E5
- B . Office 365 E3 or Office 365 E5
- C . Microsoft 365 E5 or Office 365 E5
- D . Office 36SE3 or Microsoft 365 E3

