Refer to the exhibit. Will redistributed RIP routes from OSPF Area 2 be allowed in Area 1?
正解:A
Explanation/Reference: Explanation: Area 1 is a NSSA so we can inject EIGRP routes into this area with Type 7 LSAs. Notice that Type 7 LSAs can only be existed in a NSSA. The NSSA ABR of area 1 must converted it into LSA Type 5 before flooding to the whole OSPF domain. When redistribute RIP into area 2, LSA Type 5 will be created an sent through area 0. But a NSSA is an extension of a stub area. The stub area characteristics still exist, which includes no type 5 LSAs allowed. Note: A stub area only allows LSA Type 1, 2 and 3.