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.
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Exchange 2003 Enterprise Questions
2. what is the maximum number of Exchange sites can you run in a forest?
2. What is the maximum number of containers can you create in an exchange server enterprise?
Please post links to support your answer.