deech said:
If I right click on a zone and click new domain. Is that considered a
zone?
No. That is properly called a "subdomain" if you need to distinguish it
from
the domain in which it was created.
A "zone" is ONLY when you "delegate" the domain name to the control of
an(other) DNS server set so that it is stored in a separate file (or
equivalent
for AD storage) -- i.e., when you actually have a DIFFERENT Primary
zone on some set of servers.
What is the difference in right clicking "forward lookup zones" and
creating it from there?
That would create it as an actual zone.
The word "zone" was specifically created to distinguish such case where the
name is not just another "domain name" but was actually kept in different
files (historically at least) on another set of Primary/Secondary DNS
servers,
usually under the control of other admins.
When you make a simple "sub domain" you cannot give control to other
serves or admins directly -- a zone however might not even be keept on the
same server, or on the same SET of servers.