### Multiple AVAs

Frequently, as shown in the previous topic, an entry contains a single distinguished value; therefore, the RDN comprises a single AVA. However, under certain circumstances, additional values (and hence multiple AVAs) can be used.

The figure, A Directory Entry Describing Organizational Person, shows the contents of an entry describing Organizational-Person. The RDN of an Organizational-Person entry is usually composed of a single AVA, such as the Common-Name attribute type with a distinguished value (in the figure, A Distinguished Name in a Directory Information Tree , the AVA CN = Alfred Schmidt). Depending on the schema, the RDN of an Organizational-Person entry may contain more than one AVA. For example, the RDN in the figure, A Distinguished Name in a Directory Information Tree, could contain the AVAs CN = Alfred Schmidt and OU = New York Sales, with Alfred Schmidt and New York Sales as distinguished values.

· A DIT consists of a collection of distinguished names.

· Distinguished names result from a concatenation of RDNs.

###