What is incorrect regarding the description of virtual machine snapshots?

The assertion that a virtual machine can create multiple snapshots but that subsequent snapshots become invalid when restoring is not accurate. In reality, multiple snapshots can indeed coexist and be managed in a hierarchy. When a virtual machine is restored to a previous snapshot, it does not invalidate other snapshots; instead, it creates a new child snapshot from the restored state. This allows users to manage and revert to various points in time without losing access to the other snapshots.

Snapshots serve as a way to preserve the state of a virtual machine, including its configuration, operating system, and running applications at a certain point in time. The other statements present facts that are consistent with the function and capabilities of snapshots. For instance, snapshots can save the state of the virtual machine's memory, effectively allowing the machine to resume where it left off, which is critical for maintaining application states. Furthermore, while there may be limitations on how many memory snapshots can be active concurrently, the existence of a single snapshot does not negate the potential for other valid snapshots.

Understanding these nuances helps clarify the operational capabilities and limitations of virtual machine snapshots.