SIMULATION -
Please wait while the virtual machine loads. Once loaded, you may proceed to the lab section. This may take a few minutes, and the wait time will not be deducted from your overall test time.
When the Next button is available, click it to access the lab section. In this section, you will perform a set of tasks in a live environment. While most functionality will be available to you as it would be in a live environment, some functionality (e.g., copy and paste, ability to navigate to external websites) will not be possible by design.
Scoring is based on the outcome of performing the tasks stated in the lab. In other words, it doesn't matter how you accomplish the task, if you successfully perform it, you will earn credit for that task.
Labs are not timed separately, and this exam may have more than one lab that you must complete. You can use as much time as you would like to complete each lab. But, you should manage your time appropriately to ensure that you are able to complete the lab(s) and all other sections of the exam in the time provided.
Please note that once you submit your work by clicking the Next button within a lab, you will NOT be able to return to the lab.
You may now click next to proceed to the lab.
Lab information -
Use the following login credentials as needed:
To enter your username, place your cursor in the Sign in box and click on the username below.
To enter your password, place your cursor in the Enter password box and click on the password below.
Microsoft 365 Username:
admin@admin.onmicrosoft.com
Microsoft 365 Password: xxxxxxxxxx
If the Microsoft 365 portal does not load successfully in the browser, press CTRL-K to reload the portal in a new browser tab.
The following information is for technical support purposes only:
Lab Instance: 111111111 -
You need to prevent the users in your organization from establishing voice calls from Microsoft Skype for Business to external Skype users.
















 

Suggested Answer: See explanation below.

You need to configure the External Communications settings in the Skype for Business admin center.
1. You need to go to the Skype for Business admin center.  If you see a Skype for Business admin center in the admin center list in the Microsoft portal, open it and skip to step 4.
2. If you don't see a Skype for Business admin center in the admin center list in the Microsoft portal, open the Teams admin center.
3. In the Teams admin center, choose Skype > Legacy Portal.
4. In the Skype for Business admin center, select Organization.
5. Select External communications.
6. Untick the 'Let people use Skype for Business to communicate with Skype users outside your organization' checkbox.
7. Click Save to save the changes.

This question is in MS-100 Exam
For getting Microsoft 365 Administrator Expert Certificate


Disclaimers:
The website is not related to, affiliated with, endorsed or authorized by Microsoft. 
The website does not contain actual questions and answers from Microsoft's Certification Exams.
Trademarks, certification & product names are used for reference only and belong to Microsoft.