Generally, a genealogical DNA test might use either autosomal STRs or autosomal SNPs. (STR's are Short Tandem Repeats; SNPs are single-nucleotide polymorphisms.) However, testing companies do not currently offer autosomal STRs tests that use enough STR markers for genealogy.
The schema is the Active Directory component that defines all the objects and attributes that the directory service uses to store data. The physical structure of the schema consists of the object definitions. The schema itself is stored in the directory.
An invocation ID is an ID number that identifies databases within Active Directory and changes as AD is in a restore process. ... See complete definition. Microsoft Active Directory Domain Services (AD DS) Active Directory Domain Services (AD DS) is a server role in Active Directory that allows admins to manage and store information ... See complete definition.