Which two ISA types are permitted in OSPF totally stubby areas? (Choose two.)
Which two ISA types are permitted in OSPF totally stubby areas? (Choose two.)
Within OSPF totally stubby areas, Type 1 (Router LSA) and Type 3 (Summary LSA) are permitted. Type 1 LSAs are used to describe the routers within the area, and Type 3 LSAs are used to summarize routes from other areas. Type 5 and Type 7 LSAs, which are External LSAs, are not permitted in totally stubby areas.
basically, the two allowed types are 1 and 2 not 3