I guess that means if we stick with one L'AN, using the main branch of the bank as the hub, then we don't need to buy any new hardware at the new location other than supplying more computers for the employees, right?

Materials on the right have been updated $$

Yes, all we need to buy are desktop computers for the employees at the new location.

That's not true. We still need to add a server for each new location. The server at the branch can communicate with the hub.

That's not true. We need to get a separate ISP for each new location.