As discussed in link state advertisement which two statements correctly describe OSPF type 3 LSAs? 1. Type 3 LSAs are used to update routes between OSPF areas. 2. Type 3 LSAs are known as router link entries . 3. Type 3 LSAs are used for routes to networks outside the OSPF autonomous system . 4. Type 3 LSAs are known as autonomous system external LSA entries. 5. Type 3 LSAs are generated without requiring a full SPF calculation.