What are two supported ESXi boot options? (Choose two.)

Refer to the exhibit.

An administrator enables email notifications as shown in the attached alarm. However, notifications are NOT being sent.
Where must the mail server settings be configured to resolve this issue? (Choose the best answer.)

Which tool is used to monitor the vCenter Server Appliance resources? (Choose the best answer.)

A vSphere environment is configured with 1 Gigabit Ethernet for vSphere vMotion. The application team is complaining that when they try to migrate a powered-on virtual machine, the progress is slow and unsuccessful the majority of the time.
Which two recommendations should the administrator make to improve vSphere vMotion performance? (Choose two.)

vCenter Server experiences a catastrophic failure and the administrator must restore from a vCenter Server backup stored on an FTP server.
What must the administrator do to restore vCenter Server? (Choose the best answer.)