Domain Group Enum

#Get all the groups in the current domain
Get-DomainGroup
Get-DomainGroupMember -Name "Domain Admins"

#Get all the members of the Domain Admins group
Get-NetGroupMember -GroupName "Domain Admins"
Get-NetGroupMember -GroupName "Domain Admins" -Recurse

#Get all domains
Get-Domain
Get-DomainOU
Get-NetGroupMember -GroupName "Enterprise Admins" -Domain <domain name here>

#Get the group membership for a user:
Get-DomainGroup –UserName "student1"