OSPF (ENCOR, CCNP Quiz)

In Stub Area, no routes from other AS are allowed:

Which type of OSPF Router is this?

Can we change the OSPF Reference Bandwidth if we want?

Which OSPF LSA Types are allowed in Backbone Area0 ?

OSPF supports which authentication types for security? (Choose two)

Which one of below is valid command for OSPF Hello Timer modification?

To become OSPF neighbors, OSPF routers must agree on:

Which ones are valid OSPF neighbor states?

Which LSA types are allowed in  OSPF Stub area?

Which multicast address does the OSPF Hello protocol use?