[2026年06月23日] 合格させるMS-721レビューガイド、信頼され続けるMS-721テストエンジン
MS-721テストエンジン練習テスト問題、試験問題集
Microsoft MS-721（Collaboration Communications Systems Engineer（Beta））認定試験は、コミュニケーションおよびコラボレーション技術の分野で働いている専門家のスキルと知識を検証するように設計されています。この認定試験は、Microsoftの認定プログラムへの最新の追加であり、コミュニケーションおよびコラボレーションシステムの最新の技術と傾向に焦点を当てています。
質問 # 21
Your company has an on-premises deployment of Microsoft Skype for Business Server 2015 with CU8 that Is configured for hybrid connectivity You are migrating to Microsoft Teams Phone. A Direct Routing trunk is used for PSTN connectivity. The company requires that phone number assortments be performed in Active Directory.
You plan to create a call queue that will service users both on-premises and in the cloud.
You need to create and assign a resource account for the call queue. The call queue must be able to teach users regardless of which platform they are on.
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.
正解：
解説：
Explanation:
質問 # 22
You have a Microsoft Teams Phone deployment.
When you attempt to deploy a Session Border Controller (SBC) named sfac1xontoso.com. you receive the following error message: "We cant use the "SBCl-Contoso.com" domain as it hasn't been set up in the organization. Try agaax. If you continue to have problems, contact Microsoft customer support." You need to add the SBC to the tenant.
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.
正解：
解説：
1 - From the Microsoft Teams admin center, add the SBC as sbc1.contoso.onmicrosoft.com
2 - From the Microsoft 365 admin center, add a licenced user that has a UPN to the contoso.com domain.
3 - From the Microsoft Teams admin center, add the SBC as sbc1.contoso.com.
質問 # 23
You have a Microsoft Teams Phone deployment that uses Direct Routing. The deployment has the following configurations:
* Direct Routing Session Border Controller (SBC) public IP subnet: 198.51.100.0/24
* Teams client external IP subnet: 203.0.113.0/24
* Teams client internal IP subnet: 192.168.0.0/24
You need to configure the network topology to support emergency call routing.
Which network range should you add to the trusted IP addresses?
- A. 192 168 0 0/24
- B. 198 51 100 0/24
- C. 52 112 0 0/14
- D. 203.0.113.0/24
正解：D
解説：
nce:
https://docs.microsoft.com/en-us/microsoftteams/manage-your-network-topology
質問 # 24
Case Study 1 - Litware, Inc
Overview
Litware, Inc. is an online retailer.
Litware is replacing its telephony platform with Microsoft Teams Phone.
Currently, all users are assigned Microsoft 365 E3 licenses.
Existing Environment
Telephony Environment
The existing telecommunications system has several third-party IP-PBXes at the corporate and warehouse sites. Currently, the PBXes are linked through the corporate WAN and an inter-office dial plan is in place.
A unique PSTN direct inward dial (DID) is assigned to each user. The last five digits of each DID are used as an extension.
Litware piloted Microsoft Skype for Business Server Enterprise Voice, but has since decided to migrate directly to Teams Phone. During the pilot, a response group was created, and the response group is still in use. Agents in the response group use Skype for Business Server- certified handsets.
Locations
Litware has global retail stores and datacenters.
The telephony topology contains the following four types of sites:
Corporate sites
The corporate sites contain information workers who collaborate by using the Teams desktop client and SharePoint Online.
The reception desk at each corporate site has an analog intercom with an integrated door control.
Each intercom connects to an existing PBX by using an FXS Analog Telephony Adapter (ATA).
SIP trunks are delivered directly to the site by using a resilient WAN that connects directly to the on-site PBX solution.
Warehouse sites
The warehouse sites are critical to the business. Users at these sites use either the Teams desktop client or the Teams mobile client.
Each warehouse has a public announcement (PA) system that connects to the PBX by using a SIP ATA, along with the sites' existing ISDN trunks.
Currently, users at the company's warehouse in Georgia can call the PA system by dialing
123456.
All calls to emergency services from the warehouses are played over the warehouses' PA system automatically.
WAN connectivity at the warehouses can be unreliable, so local PSTN connectivity is preferred as compared to centrally hosted connectivity.
Retail sites
Each retail site has only one or two desk phones and a specialized point of sale (POS) computer that cannot run the desktop or web versions of the Teams client.
Users at the retail sites have the Teams app and an associated data plan installed on their mobile device.
Currently, each retail uses a managed SD-WAN appliance to connect to both the internet and the corporate WAN.
The users report that in the event of an internet outage at the retail sites, they can use their mobile devices, which have strong reception.
Requirements
Planned Changes
Litware plans to implement the following changes:
Maintain the existing emergency call PA integration.
Replace the existing IP-PBX solutions by using Teams Phone.
Consolidate all its PSTN trunks by using region-specific datacenters, whenever possible During the planned deployment of Teams Phone, Litware will open a new retail site in the United Kingdom that will have five users. Litware does not have any existing telephony in the United Kingdom. Management at the new retail site wants to use Microsoft Teams Calling Plans for the users.
You are opening a new warehouse site in Melbourne. The new warehouse will connect to a phone carrier by using a Session Border Controller (SBC). Dialing rules are an area code of two digits beginning with a zero followed by a subscriber number of eight digits. For example, an
E.164 number of +61370105550 will be translated to 03 7010 5550 and +61255505550 will be translated to 02 5550 5550.
Technical Requirements
Litware identifies the following technical requirements:
Minimize the amount of voice traffic over the WAN.
Whenever possible, use natively supported Teams solutions.
Avoid replacing existing analog device adapters and SIP phones.
Assign a Microsoft 365 Phone System license to all the users listed in a CSV file.
Ensure that the retail sites can place and receive calls in the event of a WAN failure.
Assign a phone number of +61370105550 to a user named User1. User1 is located at a corporate site.
Ensure that the warehouse sites maintain calling in the event of an internet outage or Teams service failure.
Provide users at the United Kingdom retail site with phone numbers. The users must only be allowed to make in-country calls.
Replace the response group from the Skype for Business Server Voice Enterprise pilot with a call queue. The agents must be able to use their existing handset.
Drag and Drop Question
You are replacing the on-site PBX at the Georgia warehouse with Teams.
You need to maintain the functionality of the PBX after migrating to Teams.
Which sequence of steps should you perform? To answer, drag the appropriate steps to the correct locations. Each step may be used once, more than once, or not at all. You may need to drag the split bar between panes or scroll to view content.
NOTE: Each correct selection is worth one point.
正解：
解説：
Explanation:
https://docs.microsoft.com/en-us/microsoftteams/manage-emergency-calling-policies
質問 # 25
You have a Microsoft Teams Phone deployment that is used in the United States. You need to ensure that emergency calls placed to 9911.
What should you configure?
- A. an emergency call routing policy
- B. an outbound PSTN number translation rule
- C. an emergency calling policy
- D. a dial plan normalization rule
正解：B
質問 # 26
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 purchases several Microsoft Surface Hub devices for use with Microsoft Teams Rooms.
You create a provisioning package (.ppkg) to configure certificates, apps, and proxy settings for each Surface Hub.
You need to deploy the provisioning package to each Surface Hub.
Solution: Add a provisioning package from the Settings app on the Surface Hub device.
Does this meet the goal?
- A. Yes
- B. No
正解：B
解説：
https://learn.microsoft.com/en-us/surface-hub/provisioning-packages-for-surface-hub#apply-a- provisioning-package-during-first-run Insert the USB flash drive containing the .ppkg file into the Surface Hub. If the package is in the drive's root directory, the first-run program will recognize it and ask if you want to set up the device.
質問 # 27
Your company has a Microsoft Teams Phone deployment that uses Direct Routing and a single carrier.
You deploy a new Session Border Controller (SBC) that shows as healthy in the Microsoft Teams admin center.
You place a test call over the new SBC, and the call succeeds.
When you attempt to transfer the call, the transfer fails. A portion of the SIP ladder is shown in the exhibit.
(Click the Exhibit tab.)
What is a possible cause of the issue?
- A. notify is enabled in the SIP options of the SBC.
- B. The SSL certificate of the SBC is incorrect.
- C. The Refer on the SBC is misconfigured.
- D. The carrier rejects the format of the forwarded FROM number.
正解：C
解説：
Reference:
https://docs.microsoft.com/en-us/microsoftteams/troubleshoot/phone-system/direct-routing/issues-with-call- transfers
質問 # 28
You have a Microsoft Teams deployment.
A user named User1 plans to host a live event.
You create a new meeting policy and set Screen sharing mode to Entire screen.
You need to complete the meeting policy configuration to ensure that User1 can host the live event.
Which two settings should you set to On? Each correct answer presents part of the solution.
NOTE: Each correct selection is worth one point.
- A. Meet now in private meetings
- B. Whiteboard
- C. Local broadcasting
- D. Private meeting scheduling
- E. IP video
正解：D、E
質問 # 29
You need to assign the correct licenses to a sales team manager in the New York office who is scheduled to migrate from Skype for Business Server to Teams.
Which three licenses should you assign? To answer, select the licenses in the answer area.
NOTE: Each correct selection is worth one point.
正解：
解説：
Reference:
https://docs.microsoft.com/en-us/microsoftteams/what-are-communications-credits
質問 # 30
Hotspot Question
You have a Microsoft Teams deployment.
You have the Teams Rooms on Windows devices shown in the following table.
Room1 has the following snippet from the SkypeSettings.xml configuration file applied.
Room2 and Room3 have the following snippet from the SkypeSettings.xml configuration file applied.
For each of the following statements, select Yes if True. Otherwise select No.
NOTE: Each correct selection is worth one point.
正解：
解説：
質問 # 31
You are replacing the on-site PBX at the Georgia warehouse with Teams.
You need to maintain the functionality of the PBX after migrating to Teams.
Which sequence of steps should you perform? To answer, drag the appropriate steps to the correct locations. Each step may be used once, more than once, or not at all. You may need to drag the split bar between panes or scroll to view content.
NOTE: Each correct selection is worth one point.
正解：
解説：
Reference:
https://docs.microsoft.com/en-us/microsoftteams/manage-emergency-calling-policies
質問 # 32
You have a Microsoft Teams Phone deployment.
You have a dial plan that contains the following normalization rule:
Pattern: ^8?(\d{7})$
Translation: +1330$1
How will the phone numbers be normalized? To answer, select the appropriate options in the answer area.
NOTE: Each correct selection is worth one point.
正解：
解説：
質問 # 33
You have a Microsoft Teams deployment.
You plan to schedule the events shown in the following table.
You need to recommend which type of event access to use for the events.
What should you recommend for each event? To answer, drag the event access types to the correct events.
Each event access type may be used once, more than once, or not at all. You may need to drag the split bar between panes or scroll to view content.
NOTE: Each correct selection is worth one point.
正解：
解説：
Explanation:
質問 # 34
Your company has a Microsoft Teams Phone deployment that uses Direct Routing and a single carrier.
You deploy a new Session Border Controller (SBC) that shows as healthy in the Microsoft Teams admin center.
You place a test call over the new SBC, and the call succeeds.
When you attempt to transfer the call, the transfer fails. A portion of the SIP ladder is shown in the exhibit.
(Click the Exhibit tab.)
What is a possible cause of the issue?
- A. notify is enabled in the SIP options of the SBC.
- B. The SSL certificate of the SBC is incorrect.
- C. The Refer on the SBC is misconfigured.
- D. The carrier rejects the format of the forwarded FROM number.
正解：C
解説：
Reference:
https://docs.microsoft.com/en-us/microsoftteams/troubleshoot/phone-system/direct-routing/issues-with-call-trans
質問 # 35
Your company hires a new employee in Lisbon.
You assign a Microsoft 365 E3 license to the employee.
The employee must schedule meetings that will include customers in Lisbon. The customers will dial in to the meetings by using PSTN.
You need to ensure that the employee can send meeting invitations that include a dial-in conferencing bridge. The bridge must be set to a local number in Lisbon instead of the company's default dial-in conferencing bridge number.
Which two actions should you perform? Each correct answer presents part of the solution.
NOTE: Each correct selection is worth one point.
- A. From the Microsoft Teams admin center, modify the settings of the default conferencing bridge.
- B. From Users in the Microsoft Teams admin center, edit the Audio conferencing settings of the employee.
- C. From the Microsoft 365 admin center, assign an Auto Conferencing add-on license to the employee.
- D. From the Microsoft 365 admin center, set the usage location of the employee to Portugal.
正解：B、C
解説：
You only need a single employee to change thier dial in conference number default.
Also, they mention this is a new hire. Most likely, they have not been assigned an audio conferencing license yet.
https://docs.microsoft.com/en-us/microsoftteams/audio-conferencing-in-office-365
https://docs.microsoft.com/en-us/microsoftteams/change-the-phone-numbers-on-your-audio- conferencing-bridge
質問 # 36
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