its a whirlwind sometimes
it can be fun and challenging, but also very stressful .. especially when something is down, you have bosses crawling down your throat and you dont know how to get resources back online.
I'd suggest creating a VM env setup on a local desktop/server to start playing with it.
getting VM experience is always a huge benefit anyways, so that will be another point on the resume.
Get some servers stood up
email
can be very daunting, and unfortunately setting it up and getting it to run out of the box is not difficult
getting it to run in a large environment with specific requirements is a different story
ie if you have 10000 mailboxes, 250 VIP's
do you have a VIP server that has highest priority to bring back online?
or do you spread out the vip's so if one server goes down it doesn't impact them all at the same time?
how do you organize storage groups, databases?
what type of storage is best for transaction logs vs database ?
these are production type questions, you wont have to deal with in such a small environment.
setup a few servers, make sure to create standard user for yourself
try to lock it down so it only has rights to specific files/shares.. make it realistic.
VMWare has a free VMWare workstation you can install locally to start playing with
