This cmdlet performs the following operations 1. Removes one or more client machine security group(s) from the DirectAccess ...

This cmdlet performs the following operations
1. Removes one or more client machine security group(s) from the DirectAccess deployment 
2. Removes one or more DirectAccess client Group Policy object(s) from domain(s) 
3. In a multisite deployment, removes one or more security group(s) of down-level clients from the DA deployment. These down-level clients can connect only to the specified site 
4. In a multisite deployment, removes one or more down-level DirectAccess client Group Policy objects from domain(s)