One of my customers asked me how to setup an Exchange 2013 lab to begin testing. Because of this request, I build a single server Exchange 2013 environment and document the step by step process in this post. I am going to start in this post with a single server Exchange 2013 environment. Exchange has gone through iterations in design approach from front-end/back-end (in Exchange 5.5, 2000, and 2003), to multi-role (mailbox, CAS, HUB, Edge, UM in Exchange 2007 and 2010) and we are moving back to a front-end/back-end architecture in Exchange 2013.
The step by step to build a single server Exchange 2013 environment that I used: Exchange 2013 Single Server Step by Step Build
Also, the Exchange Administration has gone away from a MMC console to a web based UI called the Exchange Administration Console (EAC). No more Exchange MMC.