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.
The Active Directory module provider exposes the Active Directory database through a hierarchical navigation system, which is very similar to the file system. For example, while you are using the Active Directory module, you can use the following commands to navigate through your directory: 1  cd. 2  dir. 3  remove. . ..he Active Directory module provider exposes the Active Directory database through a hierarchical navigation system, which is very similar to the file system. For example, while you are using the Active Directory module, you can use the following commands to navigate through your directory: 1  cd. 2  dir. 3  remove. . ..