Hi Dear,
OSPF LSA TYPE 1 and LSA TYPE 2
LSA Type 1 Point-to-point connection to another router and packets are sent between routers within the same area of origin. As they are only advertised in the area, including the router's own topology information and routing information.
LSA Type 2 Connection to a transit network and LSA type 2 that occur only on the MA network are generated by the DR and include all network information that is connected to the DR. They are only advertised in the area.
Hope it will helpful