Software

Whats the point of the question ?

Does the author know himself?

In its current state its a bit like asking how long is a bit of string.
Bill J

1. Only God knows
2. pls ask to animals in forest
2. n number

My friend was asked this in an interview and he was like,, "whoa!" and since we should have some exchange people in here, someone should be able to answer this.

I found the answer to number 3.

3.Maximum storage group on Exhcange Ent is 4 with maximum of 5 databases.

humm Exchange 2003 here's some interesting info.

I hate to answer questions that look like test questions. kinda defeats the purpose of learning.

maximum databases 20
4 storage groups
5 mail stores each group
5th virtual store

maximum of 6k users per server

the key to your first question is what is a site and what is a "domain"
the key to your second question is what is a site and what is a "forest"

a site signifies a physical structure. a domain, tree, forest signifies a logical structure.

I recommend msexchange.org or technet for research.