Yesterday we kicked off the “Microsoft Path to the Private Cloud” Contest, read official rules.  Today we have another Xbox to give away, so see below for third and final question in the series of three for the day.

A reminder on how the contest works: We’ll be posting three (3) questions related to Microsoft’s virtualization, system management and private cloud offerings today (8/31), one per hour from 9:00 a.m. – 11:00 a.m. PST.  You’ll be able to find the answers on the Microsoft.com sites.  Once you have the answers to all three questions, you send us single Twitter message (direct tweet) with all three answers to the questions to the @MSServerCloud Twitter handle.  The person that sends us the first Twitter message with all three correct answers in it will win an Xbox 360 4GB Kinect Game Console bundle for the day.

And the 8/31, 11 am. Question is:

Q: How many mailboxes did Exchange Server 2010 scale to on a single physical server, across four Hyper-V VMs, when tested by Enterprise Strategy Group?

Remember to gather all three answers before you direct tweet us the message. Be sure to check back here at 11:00 a.m. PST as well for the next question.

Reminder - the 8/31, 9 am. Question was:

Q: Which Microsoft offering provides deep visibility into the health, performance and availability of your datacenter, private cloud and public cloud environments (such as Windows Azure) – across applications, operating systems, hypervisors and even hardware – through a single, familiar and easy to use interface?

And the 8/31, 10 am. Question was:

Q:  What is the name of the Microsoft program which provides an infrastructure as a service private cloud with a pre-validated configuration from server partners through the combination of Microsoft software; consolidated guidance; validated configurations from OEM partners for compute; network; and storage; and value-added software components?