Which action should an administrator perform in the vSphere Client to create a VM template that can be used by more than one vCenter Server instance?

A vSphere administrator needs to create an exact replica of a virtual machine as a safeguard prior to changing the virtual machine configuration.
Which vSphere feature accomplishes this requirement?

What is the purpose of an alarm?

An administrator is migrating 100 virtual machines from one ESXi Host to another. The current lGigE network cards are only migrating four virtual machines simultaneously.
Which action should the administrator take to increase that number to eight?

A vSphere operator can only configure up to two virtual CPUs when deploying a new virtual machine (VM).
Refer to the exhibit:

What is the cause erf this situation?