A new AD domain has just been added to vSphere as an identity source. This new domain has a user group called administrators group.
Which role do the administrators group users have by default, when authenticated to vCenter Server?

An administrator manages a vSphere environment with the following configuration:
HA enabled
Admission Control enabled based on fixed slot size
1 VM with a memory reservation significantly larger than the fixed slot size
The administrator notices that occasionally the VM with the memory reservation fails to restart during an HA host failure event.
What could cause this to happen?

An administrator runs a vSphere cluster containing database VMs with extremely heavy disk I/O. Database VMs are placed on a costly all-flash array. The workloads are not memory intensive.
How can the administrator ensure the most cost-effective utilization of the all-flash storage array?

A vSphere administrator has the privilege Content library > Add library item on the vCenter object, but is unable to add items to a local content library.
How would the vSphere administrator correct this?

Refer to the exhibit.
What is required to fix the PSOD?