Managing Windows 2016 updates

Hello Experts,

This question is regarding how to correctly manage Windows Updates in Windows 2016.

We use a management software to control which updates are allowed, and schedule a time to install and reboot.  This software currently does not yet support Windows 2016.  So I am trying to determine how to best handle Windows updates for 2016 without unexpected reboots.

When new updates are available...
1. Does it automatically download and install them and wait for Administrator authorization to reboot?
2. Does it save them, and install at the next server reboot?
3. Would the best approach be to simply conduct a scheduled reboot to complete installation and reboot of any available updates?

Also, I understand that all updates are cumulative.  So how does Windows handle an update that has been downloaded and not installed yet, and then downloads a new more current update.  

Any good concise documentation on how to manage?  

Thanks in advance.

Regards,
Rudy