Which feature is a prerequisite for Proactive High Availability (HA)?

An administrator runs a two-node vSphere cluster, which contains two domain controller virtual machines (VMs). The administrator wants to ensure that VMs run on separate hosts without interfering with normal maintenance operations.
How should the administrator configure Distributed Resource Scheduler (DRS)?

An administrator is unable to manage certificates with the vSphere Client.
What is another supported option that can be used to manage certificates? (Choose the best answer.)

Which local only host utility is used for primary, real-time performance monitoring in vSphere? (Choose the best answer.)

A host profile is updated with a new password that urgently needs to be changed on all hosts attached to the host profile.
Which option would an administrator select to complete the password change?