An administrator has just completed the "Consolidating servers within trust levels" phase of hybrid data-center security. Which phase does the administrator perform next?

"Selective network security virtualization" might be a later optimization or an implementation detail, but it's not the direct, logical next *phase* after consolidating servers within trust levels.

"Dynamic computing fabric" refers to a highly flexible and scalable infrastructure, which is an architectural goal or outcome, not a sequential phase immediately following server consolidation within trust levels.

"Generate server inventory" is typically an initial discovery phase that should occur *before* any consolidation efforts begin, as you need to know what assets you have to manage.

In a structured approach to hybrid data center security, after an administrator has optimized and consolidated servers that reside within the same trust level, the next progressive step is to address consolidation efforts that span different trust levels. This often involves re-architecting security policies and network flows between these levels for greater efficiency and enhanced security.