Which PowerShell cmdlet should you run?

You have a Microsoft Exchange organization that uses an SMTP’ address space of contoso.com.

Several users use their contoso.com email address for self-service sign up to Azure Active Directory (Azure AD).

You gain global administrator privileges to the Azure AD tenant that contains the self-signed users.

You need to prevent the users from creating user accounts in the contoso.com Azure AD tenant for self-service sign-up to Microsoft 365 services.

Which PowerShell cmdlet should you run?
A . Set-MsolCompanySettings
B . Set-MsolDomainFederationSettings
C . Update-MsolfederatedDomain
D . Set-MsolDomain

Answer: A

Explanation:

https://docs.microsoft.com/en-us/azure/active-directory/enterprise-users/directory-self-service-signup