Is their Active Directory account still active?

In order for an account to be active in Active Directory, it must have an Active logon status in the EID system AND one of the Affiliations or Entitlements mentioned here.

Q

A

Are their departmental accounts disabled or deleted when they leave the University?

At this time, no action is automatically taken on departmental accounts when the assignee leaves the University.
Department OU Owners are responsible for disabling or deleting departmental accounts when they are no longer needed.