Why The Net Control Station is the traffic cop for a directed net: it opens the net on schedule, takes check-ins, keeps a list of stations and their traffic, and then calls on stations one at a time so only one transmits at a time. That role is about running the session in progress, not administering the net as an organization.
Watch out Setting the regular meeting time and frequency is the job of the net manager or the sponsoring group, and verifying every check-in's license class is not something a net control can or is expected to do, so the choice claiming all of them are duties is also wrong.
NCS = Net Control Station, the on-air traffic cop: calls the net to order and says who talks next.