You plan to implement Azure AD connect. You have an Active Directory Domain Services domain named
Contoso.
You need to determine if the organization’s Active Directory is compatible with Azure AD Connect.
Which command should you run?

A.
dsquery * cn=schema,cn=configuration,dc=contoso,dc=local –scope base –attr objectVersion

B.
nslookup finger contoso/objectVersion > > scope

C.
ldifde –scope contoso –o domain –l objectVersion –p schema

D.
csvde –i –s –j domain/schema –r objectVersion –b contoso –o local

Explanation:
http://rickardnobel.se/verify-schema-versions-on-all-domain-controllers/
https://docs.microsoft.com/en-us/azure/active-directory/active-directory-aadconnect-prerequisites