MPLS has the concept of FEC-Forwarding Equivalence Class, so on which of the following standards cannot FEC be allocated based?

OSPF is deployed in a small and medium-sized network. When checking the routing table of a certain device, it is found that there are only direct routes. Which operation is unlikely to cause the fault?

In OSPF, ABR will convert all Type 7 LSAs in the NSSA area into Type 5 LSAs.

Regarding the IPSG, which of the following statement is incorrect?

BGP routing strategy can control the distribution and reception of routes.