Which answers correctly describe the function of OSPF messages during the database exchange process?
 1) The routers would use a Link-State Update packet to ask for missing LSAs.
 2) The routers would use a Link-State Database Description packet to send full LSAs to other routers.
 3) The routers would use a Link-State Request packet to ask for missing LSAs.
 4) The routers would use a Link-State Update packet to send full LSAs to other routers.
 5) The routers would use a Link-State Database Descriptor packet to ask for missing LSAs.