You have an on-premises Active Directory forest.
You deploy Active Directory Federation Services (AD FS) and purchase an Office 365 subscription.
You need to create a trust between the AD FS servers and the Office 365 subscription.
Solution: You run the New-MsolDomain cmdlet.
Does this meet the goal? and configures the relying party trust settings between the on-premises Active Directory Federation Services

A.
Yes

B.
No

Explanation:

The New-MsolDomain cmdlet adds a domain to Azure Active Directory.
The New-MsolFederatedDomain command should be used instead.

Note: The New-MsolFederatedDomain cmdlet adds a new single sign-on domain to Microsoft Online Services
2.0 server and Microsoft Online.
References:https://docs.microsoft.com/en-us/powershell/msonline/v1/new-msolfederateddomain