I'm from a development background but have been hired as an all-round IT person to a company of 150 people approx. The expectation is that I will step into the sys admin, network admin and hardware support roles all of which have been outsourced to date. In addition I will be trying to do as much development as possible. I'm not afraid of the challenge (I've been around for a while) and there will be more in-house help down the line. But I need to ramp up on a lot of stuff. The transition timeline hasn't been decided. As part of growing into the role I am thinking of taking the following certification: 1) MCTS 70-662 - Exchange 2) MCTS 70-640 - ActiveDirectory 3) MCTS 70-669 - Virtualization for Windows Server R2 4) Comptia Network+
Q. Are these certifications (or at least covering the ground) worthwhile? If so, are there other certifications that I should be thinking about if I am responsible for Exchange 2010, Win Server 2008 R2 and other applications running in a virtualized environment?