A. No. In-place upgrades are not possible from the Windows Server 8 Beta. You need to perform a clean installation for Windows Server 2012 (formerly code-named Windows Server 8) Release Candidate.

However, an upgrade from Windows Server 2008 and Windows Server 2008 R2 is possible. Remember though, that there will not be a supported upgrade from the Windows Server 2012 Release Candidate to the final RTM release.