FusionCompute supports the following memory overcommitment technologies: memory sharing, memory swapping, and memory ballooning.

Comprehensive and Detailed Explanation (HCIA–Cloud Computing aligned):

FusionCompute supports memory overcommitment to improve overall memory utilization in virtualized environments. The supported technologies include:

Memory sharing

Memory ballooning

Memory swapping

According to HCIA–Cloud Computing materials, after enabling memory overcommitment in cluster resource control, administrators must select at least one memory overcommitment mechanism to take effect.

Therefore, the statement correctly describes FusionCompute behavior and is TRUE.