What are three reasons why a virtual machine might fail to power on? (Choose three.)

VMware ESXi enforces license compliance at power-on time; an expired license puts the host into evaluation mode with restricted functionality, which can prevent VMs from powering on after the grace period lapses.

When a VM powers on, ESXi must create a .vswp (virtual machine swap) file equal in size to the VM's configured memory; if the datastore lacks sufficient free space for this file, the power-on operation fails immediately.

vSphere HA Admission Control reserves a portion of cluster resources to guarantee failover capacity; if powering on a VM would violate the admission control policy, ESXi blocks the operation to maintain the failover reservation.

A disconnected network adapter is a configuration issue that causes loss of network connectivity, but it does not block the VM power-on process itself.

A VM without a virtual hard disk can still power on and reach the BIOS or EFI firmware screen; the absence of a hard disk prevents OS booting, not the power-on operation.