Which action is supported over a VMkernel vMotion TCP/IP stack?

The action supported over a VMkernel vMotion TCP/IP stack is hot migrations. This is a critical feature of VMware vSphere that allows for the live migration of virtual machines from one physical host to another without any downtime.

During a hot migration, the VMkernel uses the vMotion network to transfer the memory state and the disk files of the virtual machine from the source host to the destination host while the VM continues to run. This process ensures that users experience no disruption in service, making it particularly useful for load balancing and performing maintenance on hosts.

The other options, while important functions within the VMware environment, do not involve the VMkernel vMotion TCP/IP stack for their operations. Fault tolerance protection ensures continuous availability by creating a shadow VM but doesn’t specifically rely on vMotion. Virtual machine cloning is the process of creating an exact copy of a VM and involves different mechanisms beyond what vMotion handles. Snapshot creation allows administrators to save the state of a VM at a point in time but is a separate operation from vMotion migration activities.