Which three actions can be taken as a result of executing the vSphere Update Manager 6.x scan and remediation wizards? (Choose three.)

Which three steps must be taken to use vSphere Update Manager 6.x to upgrade an ESXi 5.5 host to vSphere 6.x? (Choose three.)

vSphere Update Manager allows which two virtual machine attributes to be upgraded? (Choose two.)

An administrator enables vSphere High Availability (HA) on an existing cluster with a large number of hosts and virtual machines. The administrator notices that the setup of vSphere HA on some of the hosts is failing.

An attempt to enable vSphere Fault Tolerance for a powered-on virtual machine fails.

An administrator is unable to remove an ESXi 6.x host from a vSphere Distributed Switch.

An administrator is attempting to enable Storage I/O Control on a datastore, but it is failing.

Which scenario shows a reason for VMware Tools failing to install?

What are two possible causes of Storage Distributed Resource Scheduler (SDRS) being disabled on one or more virtual machine disks in a datastore cluster? (Choose two.)

What may be a cause for failure to unmount an NFS datastore?