An administrator should use which Nutanix component to to create in-guest clustering?

An administrator is concerned that a VM on a hybrid cluster with 8GB RAM and 4 vCPUs is performing poorly. An analysis of the VM indicates that CPU utilization is at 50%. Memory utilization is at 30%. and disk latency is at 18ms.
What can the administrator do to improve performance?

Refer to the exhibit.

The reference exhibit above is from a newly-created VM. When the administrator powers on the VM.
GuestOS installation is not happening What is causing this issue?

A mission critical application with four VMs have been deployed inside of a six-node Nutanix cluster. An alert is generated that a node in the cluster has failed and is no longer online. After the alert, two of the VMs reboot and come back online on another node.
Which feature, when configured, would have prevented the two VMs from rebooting?

An administrator attempts to reinstall a VM's QuestOS, hut h unable to change the legacy BIOS hoot priority.
Based on the exhibit, what is causing this issue?