The country domains section uses two-character country abbreviations (e.g., us for
United States). Second labels can be organizational, or they can be more specific,
national designations. The United States, for example, uses state abbreviations as a subdivision
of us (e.g., ca.us.).
Figure 19.10 shows the country domains section. The address anza.cup.ca.us can
be translated to De Anza College in Cupertino in California in the United States.